In-ear machine, compact and light. Maximum saturation sound pressure level: ≤126dB±3dB
Medium and high power hearing aids, suitable for people with moderate hearing impairment. Full range sound gain: 51dB±5dBConvenient volume control Total harmonic distortion:Convenient switch key 500Hz: ≤5%Color: Beige/Black/Silver
Battery: Rechargeable lithium battery800Hz: ≤3%1600Hz: ≤2%Frequency response range: 400Hz~5500HzEquivalent input noise level: ≤30dBWorking current: ≤3mA
Working voltage: DC 3.7 VSpecification