1.car IR wireless headphone
2.low price but super quality
3.long life span
4.good after sale service
5.fast delivery

Car IR Wireless Headphone
1) Single or Dual channel
2) Carrier frequency:
a) A channel: 2.8MHz for right channel; 2.3MHz for left channel
b) B channel: 3.8MHz for right channel; 3.2MHz for left channel
3) Speaker: 40mm mylar
4) Effective range (maximum): about 10 meters
5) Power source: 2 x AAA batteries
6) Battery life: about 48 hours