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Medical supplies box hearing aid mk-f15 Medical equipment Medical supplies box hearing aid mk-f15
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Please read the product manual carefully or purchase and use it under the guidance of the medical staff
Saturation sound pressure: 110dB + 4dB
Full range sound gain: 30dB + 5dB
Harmonic distortion: 10% or less
Frequency response: 300~4000 hz
Equivalent input noise: 40 or less The db
Standard battery: A312 battery
Working voltage: , dc. 1.5 V
Operating current: less than or equal to 4 ma
