QUWN-Mini Hidden Sound Amplifier with 4 Channels Layered Noise Reduction and Adaptive Feedback Cancellation
Product ID: 177976791
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Description
- ★Brand new and high quality invisible hearing aid sound amplifier clearly and loudly
- ★Super mini size and light weight, not easily to be seen
- ★Adjust volume to the minimum before wearing
- ★Increase volume gradually to avoid sudden increase in sound
- ★Convenient for watching movie, enjoying the drama, attending meeting, or having class, it could help you hear the sound
Max Sound Output: ≥120 dBMax Sound Gain: ≥30 dBHarmonic Wave Distortion: f<1000Hz≤10%,f>1000Hz≤4%Frequency Range: 250～3800 HzInput Noise: ≤50 dBBattery: AG3 Button battery （Not included）Working Voltage: dc1.5V Working Current: ≤4mAColor: As the picture showsItem Size: 1.9 x 1.4 x 1.6cm Net Weight:3gPackage included:1 * Hearing aid 4 * Earplug (different sizes)1 * User manual1 * Box
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