Easily add Bluetooth to car audio systems, home audio, speakers, wired headsets through the auxiliary 3.5 mm AUX socket-the smallest footprint, with a 3.5 mm plug. Plug and play, easy to set up, one-key operation, clear status indicator The latest version 5.0 of the Bluetooth wireless communication standard, no audio delay/delay, noise reduction, improved speed and range, dual audio and backward compatibility 8.0 noise reduction and DSP technology eliminate echo and block intrusive background noise, creating lossless audio CD-quality music Hands-free Bluetooth calls and navigation voices through the built-in microphone; built-in lithium-ion rechargeable 140mAh battery for 4 hours of continuous work Use the transmitter (Tx) mode through the 3.5 mm audio jack to enable your TV/projector to easily enable Bluetooth. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia