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1. Neck-hanging Bluetooth hearing aid, intelligent noise reduction mode, makes peoples voice clearer and communication with others smoother 2. Bluetooth hearing aid two-in-one, comfortable to wear, can be bent at will 3. Adopt BES mid-range Bluetooth single chip, 16-channel Bluetooth digital hearing aid 4. No need to fit the hearing aid curve design, 5-level volume adjustment 5. Can connect to mobile phone to listen to music and make calls
Parameters: 1. Average OSPL90: 115+/-3dB 2. Full sound gain: 30+/-3dB 3. Frequency response range: 200Hz~6000Hz 4. Equivalent input noise level: less than or equal to 12+/-3dB 5. Total harmonic distortion: less than 5% 6. Working current: less than 12mA
