* High Performance IR Reception for True Stereo Sound * Lightweight Design * Adjustable Headband * Automatic cut-off when no signal is present * On/Off + Stereo/Mono Switch * Volume Control Headset * High Frequency Modulation * Carrier Frequency: Left 2.3 MHZ, Right 2.8 MHZ * Open Air Dynamic Design * Power Requirement: 3DC (AAA X 2) * Effective Range: 7 Meters