3 Review(s)

This digital amplifier can help you get a more clear sound, it is a great item to help people pick a better hearing. Convenient wear Low noise,low distortion. The wire plug connected to the headset.Then earplug connector (hard) to the headset. Before you use this item, you have to turn the O-N switch to O(off), and turn the sound volume to minimum. Then put this item on you ear, keep it tightly. Next, turn this item on(O-N to N), adjust the volume until you hear clear sound. This hearing aid is packaged in a nice retail box which is perfect for retailling. The battery installation: Gently open the battery compartment cover. put a AG13/LR44 battery into the battery compartment in the right direction, then close the battery compartment. Specification : Maximum sound output: 130 ± 5dB Sound gain: = 50dB Total harmonic distortion: = 5% Frequency range: 300Hz ~ 40000Hz Input Noise: = 30 dB Operating voltage: 1.5V Battery model LR44 Weight: 74g