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Digital Rechargeable Hearing Aid (Behind The Ear Type) 12-16 hours continuous use. 300 times recharge and discharge cycles. Cerfiticate with CE, FD Model No.: IN4 UP-6SE Features: Behind-The-Ear type fits comfortably. 12-16 hours continuous use. 300 times recharge and discharge cycles. With CE, FDA. Details: Model No.: IN4 UP-6SE Standard Frequency: 1600Hz Frequency Range: 200 - 8000Hz Max. Output Sound Level Gain (SSPL 50dB) 45±5dB: 0~45dB Highest Sound Pressure Level[...]