Medical supplies Medical equipment back of the ear hearing aid mk-f136

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