Add Bluetooth connectivity to your mobile device and share your Bluetooth music feed with a friend by using this Bluetooth Splitter from Monoprice! This small device is designed to transmit audio to up to two sets of Bluetooth receivers usually headphones (though any audio device would work). It has a built-in rechargeable battery for power and plugs into an audio source device using a 3.5mm TRS plug (headphone connector). The splitter has an operating range of up to about 30 feet (10 meters). The internal battery has an operating life of approximately 9 hours giving you a full day of audio bliss. It is charged via a standard USB micro-B connection from a computer battery pack or other USB power source. The Bluetooth word mark and logos are registered trademarks of Bluetooth SIG Inc.