Model: K1 | Portable Voice Amplifiers

K1 Wireless Clip-on Voice Amplifier 20W

K1 replaces the uncomfortable headset with an 8 g wireless clip-on microphone. A 2.4G link gives zero-delay amplification. The 20 W amplifier and 77 mm driver cover a classroom of around 30 m. The upgraded DSP anti-howling chip suppresses feedback. A 2200 mAh battery runs about 20 hours, and Bluetooth 5.4 turns it into a portable speaker.

8 g 360° wireless clip-on mic: no headset strain
2.4G zero-delay amplification
20 W rated power, 77 mm driver
DSP anti-howling chip
2200 mAh: ≈20 h use, ≈3 h charge
Bluetooth 5.4 speaker mode

Send Inquiry Request Sample

MOQ: 100–500 units (standard), 1,000+ units (OEM/ODM)

Lead time: 7–15 days (standard), 25–35 days (OEM/ODM)

Samples: 5–7 days standard, 10–15 days customised

Specifications

Technical Specifications

Full datasheet and packing details are supplied with your quotation

Rated power	20 W
Speaker	77 mm, 3 Ω
Battery	2200 mAh
Runtime	≈20 h
Charging	≈3 h, 5V/1000mA
Frequency response	80 Hz – 15 kHz
SNR	≥ 72 dB
Bluetooth	5.4, ≈30 m
Clip mic	Cardioid, -42 ± 1 dB, ≈30 m, 70 mAh, ≈6 h, USB-C, SNR ≥ 85 dB

OEM / ODM Options

Logo printing and custom colours
Branded packaging and multilingual manuals
Firmware, voice prompts and UI language
Compliance support: FCC, CE, RoHS, UN38.3

Product Details

Detail images are shown in Chinese. An English brochure and spec sheet are available on request.

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Tell us your market, quantity and customisation needs. Our sales engineer replies within 24 hours with pricing, MOQ and sample availability.

Email

baiqing0919@outlook.com

+86 131 4990 0919

Address

Bao'an District, Shenzhen, Guangdong, China

K1 Wireless Clip-on Voice Amplifier 20W