Medical equipment supplies box hearing aid for the elderly mk-jh232

Please read the product manual carefully or purchase and use it under the guidance of the medical staff

Saturation sound pressure: 129dB + 4dB

Full range sound gain: 50dB + 5dB

Harmonic distortion: less than 5%

Frequency response: 450~3500 hz

Equivalent input noise: less than or equal to 30 dB

Standard battery: AG13 button battery

Working voltage: D.C. 1.5v

Operating current: less than or equal to 4 mA

Product size: 5.3x4.4x1.0 cm

Net weight: 9 g

Special file: none