
Model: K1 · 20 W
Wireless Clip-on Voice Amplifier 20W
No headset needed: an 8 g 2.4G clip-on mic, 20 W output with a 77 mm driver, DSP anti-howling and ≈20 h battery life.
View DetailsRechargeable voice amplifiers with wireless clip-on or headset microphones for teachers, tour guides, trainers and promoters
Teachers, tour guides, fitness coaches and sales promoters talk for hours every day. A portable voice amplifier protects their voice and keeps groups engaged. Shiya designs and manufactures rechargeable amplifiers in Shenzhen, from compact 10 W units to 20 W models with wireless 2.4G clip-on microphones.
We supply schools, education groups, tour operators, distributors and online sellers with standard models or fully branded versions. Our engineers focus on what matters in daily use: clear voice without feedback, a full day of battery life, comfortable microphones and durable housings.
2.4G clip-on microphones replace uncomfortable headsets and transmit with no noticeable delay.
Digital signal processing reduces howling, even in small rooms and at high volume.
Batteries from 1,800 to 2,200 mAh for about 10–20 hours of use, depending on the model.
Consistent colors, multilingual manuals and spare parts for schools and large projects.

Model: K1 · 20 W
No headset needed: an 8 g 2.4G clip-on mic, 20 W output with a 77 mm driver, DSP anti-howling and ≈20 h battery life.
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Model: K3 · Bluetooth 6.0
2.4G wireless clip mic, 10 W peak with a 78 mm driver, DSP anti-howling, Bluetooth 6.0 and 1800 mAh battery.
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Model: K2 · Designer
Handbag-style amplifier with a pearl chain strap: 10 W, 3-inch NdFeB driver, 2200 mAh for ≈10 h, Bluetooth and USB/TF playback.
View DetailsKey specifications at a glance. Full datasheets come with every quotation.
Classroom sets with matching colors, manuals and spare microphones.
Lightweight amplifiers worn on the waist for outdoor and museum tours.
Hands-free speaking with clear voice over music.
Eye-catching designs and Bluetooth playback for in-store promotion.
All amplifiers are produced in our ISO 9001:2015 certified factory. We test audio output, wireless pairing, charging and battery life before packing, and provide FCC, CE and battery documents per model.
For a typical classroom, 10 W is usually enough. For large rooms, outdoor tours or noisy environments, choose 15–20 W models such as our K1.
Clip-on mics are more comfortable for all-day use and do not mess up hairstyles. Headset mics pick up less background noise. We offer both.
Depending on model and volume, about 10–20 hours. Our K1 runs about 20 hours on a 2,200 mAh battery.
Yes. We supply classroom sets with consistent colors, multilingual manuals and spare-part kits, and can provide samples and documents for tenders.
Yes. Logo printing, custom colors, packaging and accessory sets are available. MOQ for OEM orders usually starts from 1,000 units.
Tell us your market, quantity and preferred microphone type. We reply within 24 hours with pricing, MOQ and samples.
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