Logitech?s Wireless Headphones for iPod® use advanced Bluetooth® frequency hopping technology for interference free, crystal clear audio. Digital wireless technology provides over 30 feet of range, and rechargeable batteries can play up to eight hours per charge. These headphones include a wireless adapter that snaps onto your iPod or iPod mini, plus integrated controls so you can adjust the volume, play, pause, or select tracks without touching your iPod. The power of wireless audio is in your control with Logitech?s Wireless Headphones for iPod.