Wirelessly stream audio from your old 3.5mm audio devices such as TVs, CD or DVD players, or iPods to your Bluetooth headphones or speakers-Built-in 200mAh lithium battery which supports up to 10 hours using time with 1.5 hours charging time-Effortlessly pair and connect with Bluetooth headphones, headsets, speakers, and other Bluetooth-enabled audio output devices-Ultra slim, lightweight, and portable Bluetooth transmitter frees you from messy cable management