Neckband Hearing Amplifier Rechargeable Working for 80 Hour with Adults Seniors

Description

Pr
oduct Specifications
Output OSPL90 Max: ≤119dB+3dB, EQ Input Noise: ≤29dB+3dB
Sound Gain （FOG）: ≤35dB+3dB
Frequency Range: 250Hz～5000Hz
Working Current: ≤6mA
Total Harmonic Distortion: ≤2%+3%
Working Voltage: d.c.3.7V
Operating Temperature/Humidity: -10℃~+40℃(14℉-104℉), ≥30%RH, ≤75%RH
Storage Temperature/Humidity: -10℃~+55℃(14℉-131℉), ≥10%RH, ≤90%RH
FREE YOU FROM THE HEARING TROUBLE!
Superior Sound Quality with Noise-canceling Technology
80H Lasting Working & 3H Fast Charging
As known, continuous product performance is critical for your personal use, we protect productivity with our full one-year replacement policy.
NOTE:
We recommend charging the amplifier ONCE EVERY TWO DAYS Please keep at the LOWEST sound level with the ear buds AWAY FROM THE MICROPHONE before wearing it in case of making loud screeching noise.
When you turn on the amplifier, we suggest changing to Noise-cancelling Mode, press the Middle Button ONCE, when you hear 1 beep (beep), it is Standard Mode, then please press the Middle Button once again, you will hear 2 beeps (beep beep), it is Noise-canceling Mode.