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• Max-OSPL90: ≤136dB+3dB
• HFA-FOG50: 66dB±5dB
• Noise: ≤20dB
• Work Time: 50 hours
• Rated Working Voltage of Hearing Amplifier: 3.7V
• Hearing amplifier PHA10
• Wired ear buds X 1 (1.25M/4FT)
• Charging cable X 1 (50CM/2FT)
• Neck lanyard X 1 (40CM/1FT)
• Ear tips(S,L)
• Tuning screwdriver