- Maximum sound output
- 120dB
- Sound frequency
- 85 decibels
- Sound Gain
- 22.8dB
- Total harmonic distortion
- ≤10%
- Frequency range
- 200---5000 Hz
- Equivalent input noise
- ≤48dB
- Working voltage
- 3V
- Working current
- ≤10mA
- capacity
- 1150mAH
- Size
- About 10.5*6*1.5cm
- Material
- ABS+Silicone
Unlike hearing aids, the device has a discreet design that looks like a handheld FM radio. Use the up and down arrow buttons to easily increase or decrease the volume. The large LCD screen shows your current volume. Fully portable, easy-to-use controls, including comfort earbuds.