Minidiva Neckband Hearing Amplifier, Wireless Rechargeable Headphones Working for 80H with Noise Cancelling, Personal Pocket Listening Aid for Ears, Seniors & Adults (Extral 10% Off Can Be Used)
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- 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.
- 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.
- 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
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