PYLE PLVWH6 Dual Wireless IR Mobile Video Stereo Headphones with Transmitter Studio Quality Headsets with Wide Angle Infrared Detection. Lightweight &amp; Durable Construction Padded Ear Pieces For Long Term Listening High Quality Drivers for Excellent Frequency Response and Wired Performance. Headphones Feature Adjustable Fit Headsets That Can Accommodate A Child Or An Adult. Controls Conveniently Located On Headphone for Volume and Power. Auto Muting Switch On Receiver 12 Volt DC - 1 Amp Adapter Required To Power Transmitter(Not Included) Input: RCA Cable Power On/Off With Auto Shutdown Feature Carrier Frequency: Right Channel 2.8MHz, Left Channel 2.3 MHz 8 Meter Effective Range 45 degree Left Right Power Source: Transmitter DC 12VDC Hardwired, 2 AAA Batteries 1.5V For Each Headset (not included) Dimensions(Transmitter): 0.5' (H) X 3.75'(W) X 2.5'' (D) Sold as : Pair Dual Wireless Infrared Stereo Headphone - Carrier Frequency: Right Channel 2.8MHz, Left Channel 2.3 MHz Wireless Stereo Audio Transmitter - 8 Meter Effective Range 45 degree Left Right,Power On/Off With Auto Shutdown Feature - DC 12 Volt Light Weight Adjustable Size Comfortable Headset - Operates Up To 48 Hours On (2) AAA Batteries (Not Included) for home usage , use an external AC to DC adaptor Volume Adjust Knob - Dimensions(Transmitter): 0.5' (H) X 3.75'(W) X 2.5'' (D)