Sound amplifier K-156 1. Newest product 2. Greater design 3. Middle power 4. Good price. Packaging & Delivery

Packaging Detail:	gift box or plastic box
Delivery Detail	10 days

Specifications

Hearing aid earphone are from Kownless of USA, earphone are inside the body,

K-618 Behind the ear Hearing Aid

1. power increasing range

2.stability of output signal and timbre disposal 3. Max distortion index and disposal function 4.The earphone quality All the above factory effect the Hearing Aid quality 5.Our hearing aid have design manostat electrocircuit on PCB,The manostat electrocircuit can leach outside noise and protect eardrum.  

K-618 behind the ear hearing aid (inside earphone)

  Max Sound Output: 129±4 dB  Max Sound Gain:≥40 dB  Harmonic Wave Distortion: ≤5%  Frequency Range: 300~4000 hz  Input Noise: ≤25 dB  Battery: AG13 or A675 Button battery  Max Working Hours with Standard Battery: 90 h  Working Voltage: D.C. 1.5V  Working Current: ≤3 mA  Net Weight: 8.5 g (without Battery)

Behind the ear hearing aid K-618