Meco V-99 Hearing Aid Sound Amplifier Portable Divice Black

Features: 1.N-H Switch 2.On/Off switch 3.Volume Control 4.Aluminium Alloy cover 5.Without grating sound 6.For people with severe hearing loss 7.The scope of application of gas conduction hearing disorders 8. This hearing aid is packaged in a nice retail box which is perfect for retailling. Specification: Max sound output: 1294 dB Max Sound Gain: 58dB 5dB Harmonic Wave Distortion: f<1000Hz15% f>1000Hz10% Input Noise: 30 dB Frequency Range: 450~3500 hz Voltage: 1.5V Current: 5 mA Size: 6.1x4.1x1.6 cm Net Weight: About 46g Bettery: 1 AAA Battery(not included) Package Included: 1 x V-99 Hearing Aid 1 x Earphone 3 x Earplug 1 x English User Manual