Elderly Sound Amplifier Portable Ear Canal Rechargeable Hearing Aid, Specification:, US Plug, EU Plug Option:EU Plug e-mail & ftp function

Elderly Sound Amplifier Portable Ear Canal Rechargeable Hearing Aid, Specification:, US Plug, EU Plug Option:EU Plug e-mail & ftp function1. Material: ABS 2. Hearing aid battery capacity: 40mAh 3. Hearing aid charging time: about 2H 4. Hearing aid usage time: about 30H 5. Sound output: up to 125dB 6. Current: within 2mA 7. Frequency response range: 300 5500Hz Features: 1. Intelligent noise reduction chip, amplifies the sound of different channels, the sound is not distorted, and better adapts to compensate for hearing 2. 90 degree elevation design, wear firmly, not easy to fall 3. The

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