Rechargeable ITC hearing amplifier

Features :  
* Amplify the sound of hearing for elder person   
* Hidden ITC hearing amplifier design ( mini size ) 
* Power & volume control key ( ON, VR,  OFF )

Advantages :   
* Rechargeable Li battery for 10 hours hearing operation
- Saving cost for disposable battery replacement

* Dual rechargeable ways 
- charging by AC/DC adapter for indoor use
- charging by Alkaline battery for outdoor use

* Noise Free ( NF ) Technology
* Volume control   
* Wearing suitable for both right & left ear

Specifications :  
* Rechargeable Li battery support hearing amplifier device
- Continue operation time : 10 hours
- Charging time : around 6 hours

* Max. sound output  :  118+/- 5dB  
* Peak gain : 29+/- 5dB @ 1600Hz   
* Frequency range : 500Hz ~ 5500Hz 
*  Input noise level  < 29 dB
* Total harmonic wave distortion
- 1600Hz: below 3%
- 800Hz: below 4%
- 500Hz: below 4% 
   
* Standard Frequency : 1600Hz
* Battery current < 0.8mA/2.5V
* Main device dimensions : 10.5 x 14.4 x 24 mm ( hearing device )
* Weight : 2.4 g ( hearing device )

Accessories :   
* Hearing amplifier device
* Charging case
* AC adapter
* AA Alkaline battery
* Ear cap ( two types - L, M, S )
* Clean brush