Soundstream VHP900 2-Channel Wireless Headphone Sound stream 2-Channel Wireless Headphones Fold flat ear cups increase portability and ease of storage Auto-Mute feature automatically mutes headphones if no signal os received Monitor function allows you to silence the music to listen outside Adjustable headphone straps to enhance comfort Ear Pads fold flat for seat pocket storage EVA hard carry case included Adjustable Headphone Straps for Comfort Receives Broadcasts up to 180 Degrees from Transmitter Mute Control MP-3 Player Input Via 3.5mm Jack On/Off Switch Saves Battery Life Auto Power Off Function Auto Mute Function Variable Volume Control ALC Auto Level Control