Descrtions:T14 can search for 8 devices and display them on the LED screen2 in 1 nsmitter & Receiver, as a Audio nsmitter, T14 is specially designed for the Audio Devices (such as MP3, MP4, TV and PC, etc.) without function. You can connect the nsmitter to the audio devices without function via the included 3.5mm Audio Plug, changing these audio devices into-enabled audio devices, and ing it work with-enabled Headset and Speaker;Specifications:type:T145.0;Name: Audio receiving and nsmitting adapter;Functions: audio receiving and nsmitting mode;Built-in noise reduction sound quality;Fully compatible with automatic matching;Support for hands-free calls;LCD screen display;No need to drive, plug to play;Built-in lithium battery: 300mAFeatures:Working time: ≤8HInput interface: 3.5mm;Input voltage: DC/5V;nsmiion rate :300 MbpsOperating frequency :2480 (MHz)nsmiion signal distance: 10m;Color: BlackPacking included:adapter * 1;3.5mm audio cable *1;Charging cable *1;Use manual *1