1Ultra Long Distance Transmission: This Bluetooth extender can achieve signal transmission up to 120m / 393ft in open areas without any delay or jam. Note: The operating range may be affected by physical obstacles such as WiFi routers, wall, and mental obstacles. 2Low Latency and Dual Stream: Aptx low latency technology eliminates Bluetooth latency. The long distance adapter supports dual links at the same time, paired with two Bluetooth headsets or two Bluetooth speakers, while enjoying ultra fast streaming. 3Transmitter and Receiver Mode: TX mode: connect the transmitter to the output device, let your TV, computer stream to your Bluetooth speakers, earphones. RX mode: stream from your phone to non Bluetooth devices (home stereo system, speakers). 4Bluetooth 0 Technology: Using the upgraded Bluetooth 0 technology, the data transmission speed is twice that of Bluetooth 2, a more stable connection, and always intermittently. Let your old fashioned home become a smart speaker in a few seconds. 5LED Indicator Status and 17 Hour Standby: The indicator design allows you to identify the content and connection method at a glance, making it more convenient for you to use. The built in 450mAh battery can provide up to 17 hours of working time after about 5 hours of charging.