OnFair Car Headrest Audio Universal Wireless IR "2 Channel" Headphones
Dual Channel Wireless Infrared Stereo, Fold-able Headphone, Highly Adjustable Headphone, Maximum your comfort, They feature comfortable and long lasting materials, Fold-able design, easy for safe and compact store, Great Wireless Design: Wide Angle IR Sensor, Support auto mute function, Support auto power off function, Adjustable volume function, Power/Channel selection indicator (Red for A channel/Green for B channel), 2 Channel Stereo Frequencies: Channel A Left: 2.3MHz Right: 2.8MHz? Channel B Left: 3.2MHz Right: 3.8MHz Power supply: 2*R3(AAA), Current consumption: about 25mA max (Play)/about 15mA (Mute), Frequency response: 30-20,000Hz, Distortion: 1%, Channel separation: 40dB, S/N: 60dB