Andoer Mini 3.5mm Bluetooth Audio Transmitter A2DP Stereo Dongle Adapter for TV iPod Mp3 Mp4 PC Connect to Bluetooth-disabled audio device via 3.5mm audio plug, make it able to work with Bluetooth A2DP headset/speaker. With 3.5mm audio plug, fit for most kinds of audio devices, such as TV/MP3/MP4/PC. Plug and play, no need installation. Built-in rechargeable li-battery, can work for 5~7 hours after fully charged. Compact size, portable and lightweight.