【2-IN-1 Transmitter & Receiver Mode】With Upgrade Bluetooth 5.0 technology, transmits data twice as fast as Bluetooth 4.2, more stable connection NEVER cutting in and out.◆In TX mode connect Bluetooth transmitter to Audio output devices, make your TV, computer, iPod stream audio to your Bluetooth speaker, Headphones ◆In RX mode stream audio from your phone to non-Bluetooth device(home stereo system, speakers). Make your old-fashioned home stereo become a smart speaker in seconds. 【Pair One with Two + NO LIP-SYNC DELAY】Can connect 2 Bluetooth headsets / speakers simultaneously to your TV in transmitter mode, or pair 2 devices to your home stereo system to stream music in receiver mode at the same time. Automatically connect to your previously paired devices at power-up. Supports HD low latency to virtually eliminate bluetooth audio lag. Note: ①In Low Latency mode, Bluetooth headphones / speakers are also required Low Latency. 【Built-in Microphone】Built-in microphone, this is a special point different from the other adapters on the market, you can enjoy hands-free calling,pick up or hang up a phone call by click the play/pause button,easily switch between music and call mode. The wireless distance is up to 20 meters (no obstacles). 【LED Indicator Status & 24H Long Battery Life】 The indicator light design allows you to clearly identify the contents and connections way, make it easier for you to use. With built-in 600mAh battery, it can provide up to 24 hours working time after about 2.5 hours charging. 【Easy to use】What you get:1 x ELEGIANT BTI-066 Bluetooth adapter,1 x Micro USB Charging Cable,1 x 3.5mm Audio Cable,1 x 3.5mm Jack to 2 RCA Plug Cables,1 x Digital Optical Toslink Audio Cable,1 x User Manual, compatible with 99% of the TVs, car stereo and other devices (#81)