The Soundstream VHP-11 is a wireless infrared (IR) headphone designed for rear-seat entertainment systems equipped with an IR transmitter. Perfect for overhead DVD players, headrest monitors, and multimedia systems, the VHP-11 allows passengers to enjoy private audio without disturbing others in the vehicle. Its lightweight design, adjustable headband, and fold-flat ear cups provide comfort during long trips while making storage easy when not in use. Featuring automatic power-saving functions, variable volume control, and a built-in 3.5mm auxiliary input for MP3 players and other audio devices, the VHP-11 delivers a convenient and enjoyable listening experience for rear-seat passengers. An EVA hard carrying case is included for protection and portability. Features Single-channel IR wireless headphone Compatible with most IR-equipped vehicle entertainment systems Stereo audio infrared receiver Adjustable headband for a comfortable fit Fold-flat ear cups for convenient storage EVA hard carrying case included 3.5mm auxiliary input for MP3 players and other devices Auto power-off function to conserve battery life Auto mute function when signal is lost Variable volume control ALC (Auto Level Control) technology Lightweight and portable design Specifications Manufacturer: Soundstream Model: VHP-11 Product Type: IR Wireless Headphone Channel Configuration: Single Channel Wireless Technology: Infrared (IR) Audio Mode: Stereo Frequency Response: 30Hz – 20kHz Signal-to-Noise Ratio: Greater than 60dB Channel Separation: Greater than 40dB Total Harmonic Distortion (THD): Less than 1% Operating Range: Up to 32 Feet Driver Size: 40mm Mylar Cone Driver Power Source: 2 AAA Batteries (Not Included) What's Included (1) Soundstream VHP-11 IR Wireless Headphone EVA Hard Carrying Case User Documentation