Digital Wireless Stereo Headphones 100' wireless range is designed to work in a home with multiple wireless signals Uncompressed CD-quality sound Docking station recharges the batteries Frequency response: 20Hz - 20kHz Sensitivity: 118dB Up to 18 hours of battery life Includes docking station, 2 AA batteries, AC adapter, 1 microphone for universal TV connection and stereo audio cable