Battery Powered ITC Hearing Amplifier ( Aid )

  • 鋅空氣電池耳內-1
  • 鋅空氣電池耳內-2
  • 鋅空氣電池耳內-3
  • 鋅空氣電池耳內-4
DETAIL
Features :  
* Amplify the sound of hearing for elder person   
* Hidden ITC hearing amplifier design ( mini size ) 
* Power & volume control key ( ON, VR,  OFF )

Advantages :   
* Noise Free ( NF ) Technology
* Wearing suitable for both right & left ear
* up to 260 hours continue use in one PR 41 battery

Specifications :  
* Maximum Output Sound Level Gain: 34 ± 5dB 
* Highest Sound Pressure Level for Input SPL 90dB: 109 ± 5dB
*  Input noise level  < 29 dB
* Total harmonic wave distortion
- 2500Hz: below 3%
- 800Hz: below 4%
- 500Hz: below 4% 
* Standard Frequency : 2500Hz
*  Frequency range : 600Hz ~ 4500Hz  
* Consumption current < 0.8mA
* Main device dimensions : 13.2 x 12.5 x 23.5 mm ( hearing device )
* Weight : 2.2 g ( hearing device )
* Battery Type: Button size 312 (PR41) battery
 
Accessories :   
* Hearing amplifier device
* Portable case
* Clean brush    
* Ear cap (  L, M, S )
* PR41 battery x 2