2.4 GHz transmission frequency, Bluetooth wireless, around 33 ft. operating range. Operates up to 5.5 hrs. on built-in rechargeable batteries. Has low battery indicator and battery recharge indicator. Manufacturer claims water resistance. Power on/off button on right earpiece can be used to activate timer function of the free Samsung S Health app or other compatible apps. Bluetooth connected Apple mobile devices using iOS Version 5 and above will show the battery level.
Samsung Level Active headphone - Info & Customer Reviews