Functions:
1) Wireless TV hearing aid function   
2) One button switching between TV hearing aid and normal hearing aid(only for JH-8010&JH-8011)
3) Regular and extensional hearing aid function
4) Hearing aid function for phone call              
5) Computer chatting headphone with hearing aid function
6) Wired headphone with hearing aid function

Specifications:
1) The product can help hearing loss people to listen to TV sound clearly, without turning up the volume 
2) Several audio input jack for selected: a standared 3.5mm audio jack, an equipped MIC standard 3.5mm input, digital optical fiber input and digital coaxial line input(only for JH-8011)  . 
3) Voice clarifying circuitry: built-in noise reduction technology can reduce background noise of TV,so that hard to hear words and whispers" jump out",making television dialog easier to understand.
4) Automatic signal control:hearing loss people's adaptive faculty for volume change is weak,our circuit will adjust the sudden change volume and make the output volume stable,it will avoid strong signal hurting user's listening. 
5) Balance control:to adjust the left and right volume to be suitable for your own level.   
6) Tone control:users can adjust the button to find the best feature.        
7) Automatic power off function for the transmitter when no signal is received.    
8) Automatic muting function for the receiver when no signal is received. 
9) In-ear type design, help to reduce the noise around more efficiently.
10) Li-ion battery design and removable(for JH-8009, JH-8010&JH-8011), easy to replace, save cost. 

*.Signal transmitting: 
2.4GHz RF                           
*.Frequency points:12        
*.S/N:≥80dB       THD<1%                                
*.Effective distance:15m(indoor)                                           
*.Li-ion battery continous working time: 6Hs                               
*.Li-ion battery charging time:4hs