PYLE PLVWH5 Wireless IR Mobile Video Stereo Headphones Single Wireless Infrared Stereo Headphone Light Weight Adjustable Size Comfortable Headset Power On/Off With Auto Shutdown Feature Volume Adjust Knob Carrier Frequency: Right Channel 2.8MHz, Left Channel 2.3 MHz 8 Meter Effective Range 45 degree Left Right Operates Up To 48 Hours On (2) AAA Batteries (Not Included) Sold as : Unit Single Wireless Infrared Stereo Headphone - 8 Meter Effective Range 45 degree Left Right Light Weight Adjustable Size Comfortable Headset - Operates Up To 48 Hours On (2) AAA Batteries (Not Included) Power On/Off With Auto Shutdown Feature Volume Adjust Knob Carrier Frequency: Right Channel 2.8MHz, Left Channel 2.3 MHz