Samson RTE 2 - Bluetooth Headphones On-ear headphones with Bluetooth connectivity to wirelessly stream audio Over 30' Bluetooth operating range from music source, NFC for quick touch pairing with compatible mobile devices Onboard microphone for hands-free phone calls, with Ear cup Play/Pause, Next, Back, Volume, and Call commands Built-in rechargeable lithium ion battery, Over 10 hours of full-level listening, 200 hours on standby Includes 1/8" (3.5mm) input for wired operation not requiring charged battery, USB charging cable and protective carry case