JH-A620 in ear detection to avoid feedback nobe volume control mini rechargeable ITE hearing aids

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1. In ear detection turn ON/OFF without squeal
2. Comfortable fit, perfect ergonomics, light weight
3. VC adjustment, modify easy, up to 190 degree run on adjustment knob.
4. NTC protection, automatic turn off when temperature reaches 45C for safety.
5. Quick 15-minute charge provides 3+ hours hearing back.
6. Portable charging case can recharge each device at least 3 times.