Enjoy crystal-clear audio and wireless freedom with the Power Acoustik HP-900S 2-Channel RF Wireless Headphones. Designed for mobile entertainment systems, these over-ear headphones utilize 900MHz RF technology to deliver reliable audio transmission with an operational range of up to 100 feet. Featuring dual-channel selection, independent volume controls, and fold-flat swivel ear pads, the HP-900S provides comfort and convenience for passengers on long road trips, family vehicles, RVs, and mobile video systems. Features 2-channel 900MHz RF wireless headphones Up to 100-foot operating range Dual-channel audio selection Adjustable headband for a comfortable fit Swivel, fold-flat ear pads for easy storage Independent volume control 3.5mm auxiliary input for MP3 players and mobile devices Auto power-off function to conserve battery life Auto mute function when no signal is detected Auto Level Control (ALC) for consistent audio levels Includes protective EVA hard carrying case Benefits Ideal for rear-seat entertainment systems Allows multiple users to listen independently Comfortable design for extended listening sessions Easy storage when not in use Compatible with many mobile audio and video systems using RF headphone transmitters Specifications Model: HP-900S Wireless Technology: RF 900MHz Channels: 2 Selectable Channels Range: Up to 100 Feet Power Source: 2 AAA Batteries (not included) Auxiliary Input: 3.5mm Audio Jack Design: Over-ear with swivel ear pads Color: Black What's Included (1) HP-900S Wireless Headphones EVA Hard Carrying Case User Documentation