Xingma Hearing Aid XM 737 T

Product details of Xingma XM-737T Pocket system Hearing Aid Voice Amplifier
Product Type: Hearing Aid Sound Amplifier
Brand: XINGMA, Model: XT 737T
Pocket type Hearing Aid
Maid in China (Mainland)
Powerd by One AAA Battery (not included with the machine)
Pocket keeping wired type sound system.
Very good and smooth sound solution.
Max sound output:–133±4dB
Sound gain:–45±5dB(1000Hz)
Total harmonic wave distortion:–≤10%
Input noise:–≤35dB
Frequency range:–300~4500Hz
Volume adjustment system to make it comfortable for you.
Addition al Airplug provided, pls choice one you need.
If you hear a howling, check the ear (silica gel) is appropriate and whether the size of plug is tight, the appropriate choice of earplugs and plugged, make sure no air leakage.
Keep the ear plug clean
Remove the battery if you don’t use it for long time.
Authentic producXingma Hearing Aid XM 737 T