- Super mini size and lightweight, not easy seen
- Amplify sounds up to 40 decibels
- Lightweight than 10 grams
- 6 volume levels
- Convenient wear, for either ear
Maximum sound output: 130 ± 5dB
Sound gain: more than 50dB
Total harmonic distortion: less than 5%
Frequency range: 300Hz ~ 40000Hz
Input Noise: less than 30 dB
Current: less than 4mA
Battery Type: AG13 button cell battery (1pc included)
Choose an earplug of slightly bigger size to avoid whistler
Adjust volume to the minimum before wearing
Increase volume gradually to avoid sudden increase in sound
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.
1 x Ear sound amplifier
3 x Earplug of different size
1 x AG13 batteries (already in the device)
1 x Instruction manual
How to use:
* Before using switch the volume to the minimum position.
* Put the ear hook on your ear, plug in the ear tightly.
* Turn on the power and adjust the sound volume to get a clear sound.
* If you hear the whistling sound, please check whether you have plugged in the ear tightly. If it can’t be plugged tightly, please change the other size plug.
* Remove the battery if you don't use it for a long time.