Total harmonic wave distortion:10%
Peak gain: 40dB + -5
Average high-frequency gain: 35dB + -5
Input Noise: 32dB
- Increase volume gradually to avoid sudden increase in sound.
- Moisture resistant provides durability to most forms of moisture and wear.
- Ear Digital 2 channels 4 bands Hearing Aid USB Rechargeable
- PRECISE VOLUME CONTROL: With the digital volume control, it can gradually and comfortably increase sound levels according to your unique hearing needs.
- Package includes:1 x Ear sound amplifier, 3 x Earplug of different size, 1 x USB data cable, 1 x Cleaner