Beurer HA 20 - Manual (Page 24)

24
Problem Possible causes
The hearing amplifier is ve-
ry quiet.
- Volume setting on hearing amplifier is
too low.
- Battery is almost empty.
- Earplug is dirty.
- Microphone is dirty.
10. Technical specifications
Maximum audio output: 128dB Voltage: 1.5 V
Sound amplification: max. 40dB Overall harmonic distortion: ≤ 5%
Frequency range: 200 − 5000Hz Power supply: ≤ 4mA
Input noise: ≤ 30dB