Frequently Asked Questions

Shenzhen Aurora Sound Technology Limited is invested by Shenzhen Aurora Technology Limited, a large-scale manufacturing enterprise with 400+ professional employees and an annual industrial output of 300 million RMB. The parent group owns a complete mature global supply chain, standardized full-process quality control system, and long-term stable cooperation with world-renowned brands including Walmart, Bosch and Ford. We build on the industrial engineering heritage of our parent group (founded 2011) covering aviation headsets, bone conduction headphones and ANC active noise cancellation technology, providing one-stop OEM & ODM acoustic product manufacturing solutions for global brand businesses, retailers, electronic engineers and bulk wholesalers.

As a top wearable audio and acoustic equipment supplier, our microphone division ranks No.1 in the industry for on-time delivery rate. We maintain an average 3-hour customer inquiry response time and guarantee 100% on-time dispatch for all bulk orders. Our factory holds CE, FCC, RoHS and BQB Bluetooth certifications, supports private label customization, custom logo, customized packaging, firmware development and hardware modification for all audio products, including lapel microphones, smart audio glasses, ANC earbuds, under pillow speakers, voice amplifiers and portable karaoke microphones.

Yes, we offer full one-stop ODM & OEM service for all acoustic products. Our R&D team supports custom touch control functions, adjustable audio parameters, RGB light modes, battery capacity design, IP waterproof grade upgrade, custom frame for smart audio glasses, dual-channel recording systems for wireless lapel mics and white noise timing functions for under pillow sleep speakers. We also provide multi-language user manuals, customized gift box packaging and drop-shipping support for cross-border sellers.

All our wireless audio equipment passes CE, FCC, RoHS and BQB Bluetooth certification. We offer IPX4 daily waterproof and IPX7 high waterproof options for outdoor portable speakers, sport smart audio glasses and waterproof wireless lapel microphones. All raw materials adopt eco-friendly low-radiation materials, safe for kids, long-time daily wear and all-scenario use.

We guarantee 100% on-time dispatch for all audio bulk orders with top industry on-time delivery rate. Ready-stock items support fast shipment within 3-7 working days; customized OEM/ODM orders take 15-30 working days based on customization requirements. We support global sea freight, air freight and express delivery, and provide stable supply for global distributors, offline retailers and cross-border e-commerce sellers.

Our MOQ varies by product: wireless lavalier microphones varies by product line and customization level. Standard OEM programs typically start from 100–500 units. Please contact us for specific MOQ based on your product and requirements.

Yes, we provide samples for all products. Sample pricing is typically 2x the bulk OEM price, and the sample cost is fully refundable when you place a bulk order. Sample lead time is 3-7 working days via DHL/FedEx express shipping. We recommend ordering 2-5 samples to test across multiple devices (iPhone, Android, PC, camera) before committing to OEM production.

We accept T/T (telegraphic transfer) as standard: 30% deposit upon order confirmation, 70% balance before shipment after QC inspection. For samples, we accept PayPal and Alibaba Trade Assurance. For large orders over $50,000, we accept irrevocable L/C at sight. All payments are in USD. We also support DDP (delivered duty paid) shipping for door-to-door convenience.

Yes, we offer full ODM (Original Design Manufacturing) service for custom audio products. Our 400+ R&D engineers handle industrial design, mechanical design, PCB layout, firmware development, companion app development, and certification. ODM process: concept (2 weeks) → design (4 weeks) → prototyping (6 weeks) → tooling (8 weeks) → pilot run (3 weeks) → certification (4 weeks) → mass production (6 weeks). Total timeline 5-10 months. Tooling cost: $5,000-20,000. MOQ: 1,000+ units.

Yes, we sign NDAs before sharing any design files or technical specifications. Our standard NDA covers: (1) confidentiality of your product design and branding, (2) non-compete clause preventing us from selling your design to competitors, (3) tooling and mold ownership (you own all custom molds), (4) IP protection for firmware and software. We also support registering your trademark in China before production begins, ensuring legal protection of your brand.

We produce a full range of clip-on microphones, including 2.4G dual-channel wireless lapel mics, Bluetooth mini lapel microphones, UHF long-distance interview microphones, noise canceling condenser recording mics, single-transmitter single-receiver vlog microphones and dual-transmitter kits for two-person interviews. Our microphones are compatible with iPhone, Android smartphones, DSLR cameras, tablets, laptops and action cameras like GoPro, ideal for TikTok live streaming, YouTube vlogging, podcast recording, teacher classroom teaching, conference presentations and wedding video shooting.

All our 2.4G wireless lapel microphones adopt anti-interference digital signal technology with ultra-low latency, perfectly matching TikTok, Instagram, Twitch and Facebook live broadcast. Equipped with one-key noise reduction and real-time voice monitoring functions, they eliminate background wind noise for outdoor shooting, featuring high-sensitivity condenser mic cores for professional ASMR recording, voice-over and audio book production.

Absolutely. We support custom logo printing on microphone transmitters, charging cases and packaging boxes, custom color matching (matte black, white, pink fashion styles), customized wind foam shields, storage carry pouches and multi-language user manuals. We also develop exclusive firmware functions including mute buttons, audio gain adjustment and auto power-saving modes for brand owners' exclusive private label wireless clip microphones.

The mini lapel mic transmitter supports 10 hours of continuous recording, with the charging case providing an extra 20 hours standby power. Fast charging design fills the full battery within 1 hour; intelligent auto-pairing and power-saving technology extend daily usage for all-day shooting, suitable for travel bloggers, real estate videographers, fitness coaches and online course lecturers.

Our smart audio glasses are core wearable audio devices built with hidden mini stereo speakers, adopting open-ear design without earplugs to avoid ear pressure during all-day wear. Core functions include touch control for music playback, volume adjustment and hands-free phone calls, built-in noise reduction microphones for clear outdoor calling, Bluetooth 5.3 multi-device pairing, IPX4 sweatproof waterproof performance for running, cycling and motorcycle riding. We supply polarized UV protection sunglasses, anti-blue light office glasses and replaceable lens frames for daily fashion matching.

We provide full customization for smart audio eyewear: TR90 lightweight flexible frames, metal frames, custom frame colors, customized lens functions (reading lenses, anti-blue light, polarized lenses), exclusive touch control firmware, built-in microphone parameters and branded charging storage boxes. Low MOQ is available for cross-border hot-selling fashion audio sunglasses trending on TikTok and Instagram.

Bone conduction headphones transmit sound through bone vibration, suitable for swimming, long-distance running and high-intensity sports with IPX7 waterproof options. Our smart audio glasses integrate audio playback and daily eyewear in one product, more suitable for daily commuting, driving, office video meetings and casual outdoor walking. Both series support ANC noise reduction, long battery life and hands-free call functions for wearable audio consumers.

Our mini invisible sleep earbuds adopt soft silicone ultra-small ear tips, no earache for side sleeping, built-in white noise masking mode to relieve insomnia. With limited safe volume for kids and low power consumption, they are ideal for bedroom rest, travel hotel sleep and meditation yoga use.

We specialize in thin flat under pillow bluetooth sleep speakers with soft gentle hifi sound, built-in white noise, rain wave and ASMR relaxing sound modes, auto-timer shut-off function and warm night light options. Low decibel safe design for babies, elders and insomnia relief, lightweight and portable for hotel travel and student dormitories. Custom private label OEM white noise pillow speaker orders are supported.

Our waist-hung lightweight voice amplifiers are core audio tools for school teachers, kindergarten instructors, tour guides, museum narrators, training coaches and church pastors. Equipped with matching wireless lapel microphones, TF card MP3 playback, USB disk music reading and recording functions, adjustable volume and noise reduction for outdoor exhibitions, seminars and outdoor teaching activities.

We manufacture mini portable karaoke equipment including single-handheld wireless singing mics and dual-mic RGB light karaoke speaker systems for home parties, camping trips, birthday gatherings and student dorm entertainment. Key functions: echo & reverb adjustment, one-key original sound cancellation, voice conversion, colorful flashing RGB light effects, deep bass stereo sound and IPX4 daily waterproof for outdoor picnic use. Kids safe low-volume karaoke toy microphones are also available as hot cross-border items.

Our portable bluetooth speaker lineup covers IPX7 waterproof outdoor camping speakers, desktop mini stereo speakers, bathroom suction cup speakers, night light bedside speakers and TWS interconnection dual-speaker sets. All support Bluetooth 5.3 stable connection, TF card & USB playback, lanyard and carabiner hooks for outdoor carrying, with customizable RGB light modes, shell shapes and private label packaging for global retailers.

We manufacture TWS (True Wireless Stereo) earbuds including our A9Pro model with AI multi-language translation, semi-in-ear design, 20-hour total playtime with charging case, and dual-mic ENC for clear calls. For OEM/ODM projects, we also produce ANC (Active Noise Cancellation) earbuds, bone conduction headphones (IPX7 waterproof for swimming), and open-ear sport earbuds (IPX4, lightweight hook design). All support Bluetooth 5.3+ and custom EQ tuning from 500+ sets.

ANC (Active Noise Cancellation) is a speaker technology that reduces noise you hear by generating anti-noise signals. It is used in earbuds and headphones for immersive listening. ENC (Environmental Noise Cancellation) is a microphone technology that filters noise from your voice using dual microphones and DSP algorithms. It is used in lavalier mics, earbuds with mic, and smart glasses for clear calls and recordings. Our products feature both: ANC in earbuds (A9Pro) and ENC in all wireless microphones and smart glasses.

Yes, we offer bone conduction headphones as OEM/ODM projects from 500+ sets. Features include IPX7 waterproof (swimming-ready), titanium memory band, 8+ hour battery, and open-ear design for situational awareness. Bone conduction is ideal for swimming, cycling, industrial safety, and hearing aid applications. MOQ is 500 sets for white label, 1000+ sets for custom color, and 2000+ sets for full ODM. Our bone conduction technology is also used in the G06 under pillow sleep speaker.

All our Bluetooth audio products support SBC (universal) and AAC (Apple ecosystem) as standard. For premium OEM/ODM orders (500+ sets), we can add aptX (Android, low latency), aptX HD (high-resolution), and LDAC (Sony Hi-Res). Our V03 smart glasses support LC3 codec via Bluetooth 5.4 LE Audio for ultra-low latency (<50ms) and 50% lower power consumption. Codec selection impacts audio quality, latency, and battery life.

We supply a full range of audio accessories including: USB-C and Lightning charging cables, replacement wind foam shields for lavalier microphones, EVA carrying cases with magnetic closure, 3-in-1 adapters (Lightning / USB-C / 3.5mm), replacement ear tips (S/M/L sizes in silicone and memory foam), ear hooks for sport earbuds, lanyards and carabiners for portable speakers, and replacement clips for wireless microphones. Custom accessories available from 100+ pcs with your brand logo.

Yes. We offer custom packaging for all audio accessories from 100+ pieces. Options include retail blister packs ($0.30-0.80/unit), premium gift boxes with magnetic flap and foam insert ($2-5/unit), e-commerce mailer boxes ($0.50-1.50/unit), and custom-printed boxes with your brand logo and multi-language text ($1-3/unit). We also provide custom user manuals in English, Chinese, Spanish, German, French, Japanese, and 14 other languages from 50+ pcs at no extra cost.

Yes, we sell replacement parts for all our audio products. Common replacement parts include: wireless microphone charging cases, receiver adapters (Lightning / USB-C / 3.5mm), earbud ear tips (silicone and memory foam, S/M/L), smart glasses lenses (clear, tinted, polarized, anti-blue-light for HY05), voice amplifier belts and clips, speaker charging cables, and wind foam shields. Contact [email protected] with your product model and required parts for pricing and availability.

All our audio products come with a 12-month standard warranty from the shipment date, covering manufacturing defects (not user damage). Our defect rate is below 1%, industry-leading. For earbuds, the warranty covers driver failure, Bluetooth pairing issues, and charging defects. For accessories, the warranty covers manufacturing defects but not normal wear and tear. Extended 24-month warranty is available for +5% of order value. RMA (Return Merchandise Authorization) process: email photo/video of defect, get RMA number, ship to China (buyer pays), we repair/replace and ship back (we pay).

All our 2.4GHz wireless lavalier microphones are plug-and-play. For iPhone 15 and later (USB-C): insert the USB-C receiver into the phone's charging port. For iPhone 14 and earlier (Lightning): use the included Lightning adapter. No app, Bluetooth pairing, or driver installation needed. The microphone connects automatically within 2 seconds. Open your camera or recording app and start recording with crystal-clear audio.

Our 2.4GHz wireless lavalier microphones have a transmission range of 20-50 meters in open environments. The ASKS20 model offers up to 50m range, while the J13 and Q8 offer 20-30m. Range may be reduced by walls, metal obstacles, and Wi-Fi interference. For professional stage or conference use requiring 50-100m range, we recommend our UHF wireless microphone systems. All models maintain stable signal with anti-interference digital technology.

Yes. All our wireless lavalier microphones come with wind foam shields that effectively reduce wind noise for outdoor shooting. Additionally, our ENC (Environmental Noise Cancellation) technology with DSP algorithms further filters ambient noise. For extremely windy conditions, we recommend using a deadcat wind muff (available as an accessory). The ASKS20 and Q8 models have the best outdoor performance with dual-layer noise protection.

2.4GHz wireless microphones: global license-free, low latency (<20ms), 20-50m range, digital encryption, ideal for vlog, live streaming, and podcast. UHF wireless microphones: longer range (50-100m), ultra-low latency (<5ms), requires frequency license in some countries, ideal for stage performance, conference, and professional events. Aurora Sound manufactures both: 2.4GHz models (ASKS20, J13, Q8, K15, Mini8) for content creators, and UHF model (U8) for stage and conference use.

Yes. Our ASKS20, Q8, and K15 models support dual-transmitter mode: 2 transmitters + 1 receiver, recording both voices simultaneously on separate channels. This is ideal for 2-person interviews, co-hosted podcasts, and dual-speaker live streams. Each transmitter has independent gain control. The receiver plugs into your device (iPhone/Android/camera) and both audio channels are recorded in sync. No additional software needed.

Yes, our HY05 model features a replaceable lens system. You can swap between clear lenses (indoor), tinted lenses (fashion), polarized lenses (driving), anti-blue-light lenses (office), and prescription lenses (vision correction). The lens replacement takes seconds with a simple push-button release mechanism. Other models (V03, HY03, HY02) have fixed lenses but offer UV400 protection as standard.

Yes, all our smart audio glasses are compatible with both iPhone (iOS 12+) and Android (8.0+) smartphones. They connect via Bluetooth 5.3 or 5.4, which is universally supported. The open-ear audio works with any music or call app. The AI translation feature requires our companion app, available on both App Store and Google Play. Multi-point connection allows pairing with 2 devices simultaneously.

Our AI translation smart glasses (HY03, HY02, V03) support 80+ languages in real-time. The workflow: (1) glasses microphone captures your speech, (2) Bluetooth sends to companion smartphone app, (3) cloud AI engine (Google Translate / Microsoft Azure / DeepL) processes translation, (4) translated audio plays through the glasses' open-ear speakers. Translation latency is under 1 second. The AI supports one-way and two-way conversation modes for travel, business meetings, and language learning.

Our smart glasses offer different waterproof levels: HY03 is IPX-4 (sweat and light rain resistant), HY05 and HY02 are IPX-5 (rain and shower resistant, suitable for everyday outdoor wear including cycling and running). The V03 camera glasses are not waterproof rated but can handle light moisture. For swimming or water sports, we do not recommend smart glasses. All models have UV400 protection for outdoor sun protection.

Battery life varies by model and usage: HY03/HY02: 6 hours continuous music playback, 100mAh rechargeable battery, charges in 1.5 hours via USB-C. HY05: 6 hours playback with touch control. V03: 4 hours continuous video recording, 6 hours music playback (camera consumes more power). All models have standby time of 7+ days. The battery is designed for all-day intermittent use (music + calls + occasional AI translation).

Our M28 portable voice amplifier has basic splash resistance suitable for light rain. However, for heavy rain or prolonged outdoor use in wet conditions, we recommend using a protective rain cover (available as an accessory). For applications requiring full waterproof (IPX7), we offer OEM/ODM custom voice amplifiers with sealed housing and waterproof ports from 500+ sets. Always dry the device thoroughly after exposure to moisture.

The K90 all-in-one karaoke machine is AC-powered for continuous home use, so battery life is not a concern for stationary entertainment. The included 2 wireless microphones have rechargeable batteries providing 8+ hours of continuous singing per charge. The microphones charge via USB-C in approximately 2 hours. For portable outdoor karaoke, we recommend our M28 voice amplifier with 9-hour battery life, which also supports music playback via Bluetooth and TF card.

No. Our G06 under pillow sleep speaker uses bone conduction technology with extremely low electromagnetic emission, far below international safety standards (ICNIRP and FCC). The device is designed for all-night bedside use with RoHS-compliant eco-friendly materials, low-radiation circuitry, and auto-timer shut-off. It is safe for babies, elderly, pregnant women, and prolonged overnight use. The bone conduction transducer operates at safe frequencies that do not penetrate tissue.

Yes. Our HB02 portable speaker supports TWS (True Wireless Stereo) interconnection, allowing you to pair 2 speakers for left/right stereo channel separation. Simply press and hold the TWS button on both speakers, and they will automatically pair. The HB02 also supports multi-device connection (2 phones simultaneously). For K90 karaoke machine, the 2 included wireless microphones operate on independent channels for duet singing.

Our G06 under pillow speaker uses bone conduction technology, which transmits sound through vibrations that only the sleeper can hear (via pillow contact), resulting in zero sound leakage — your partner won't hear anything. Regular (air conduction) under pillow speakers use thin drivers that produce audible sound, which may disturb your partner. Bone conduction is also safer (lower electromagnetic emission) and more comfortable (no pressure on ears). The trade-off: bone conduction has weaker bass response.

Yes. The A9Pro smart translator earphones support multi-language real-time translation via our companion app. Simply connect the earbuds to your phone via Bluetooth 5.3, open the app, select source and target languages, and speak naturally. The translation plays through the earbuds in under 1 second. It supports one-way mode (you speak, translation plays) and two-way mode (both parties wear earbuds or use the phone speaker). Ideal for international business meetings, travel, and language learning.

All our audio products and accessories with USB-C charging support fast charging. Typical fast charge performance: 10 minutes of charging provides approximately 2 hours of playback. Full charge time: 1-2 hours depending on battery capacity. Our charging cables are USB-C to USB-A (standard) or USB-C to USB-C (optional) with 2A current support. For OEM orders, we can include PD (Power Delivery) fast charge support for +$0.50/unit from 500+ pcs.

Yes. Contact us at [email protected] or +86-135-1051-0528 to request our complete audio product catalog with OEM pricing. The catalog includes all 16 products across 6 categories (wireless microphones, smart audio glasses, earphones & headphones, Bluetooth speakers, voice amplifiers, audio accessories), with specifications, MOQ, pricing tiers, certification status, and customization options. We respond within 3 hours on average. Digital catalog (PDF) and physical samples are available.