DescriptionThis item can be used for sound amplifier. When you see film / watch movie, enjoy the drama / watch the play, attend meeting, or have classes, the product can help you to hear the sound clearly and loudly. While in forest, if you want to hear very slight sound, it will be a good choice.Features- Color: As shown- Material: ABS- Size: 10x9x4cm- Max Sound Output: 120 dB- Max Sound Gain: 30 dB- Harmonic Wave Distortion: f<1000Hz10%,f>1000Hz4%- Frequency Range: 2503800 Hz- Input Noise: 50 dB- Battery: 1 x AG3 Button battery (Included)- Working Voltage: dc1.5V- Working Current: 4mA- Super mini size and light weight, not easily to be seen.- Convenient for watching movie, enjoying the drama, attending meeting, or having class, it could help you hear the sound clearly and loudly.- and hearing aid sound amplifier.- Adjust volume to the minimum before wearing.- Increase volume gradually to avoid sudden increase in sound.
