TX19 Bluetooth 5.2 Audio Transmitter USB Adapter with External Antenna for PC TV CD Player Equipped with an external antenna to enhance the signal to ensure fast connection,long-distance transmission and stability Simple to operate,and all audio can be sent freely Through this product,audio can be obtained from PC/TV/CD player/MP3 or any other audio equipment,and the device can be connected to speakers or headphones with Bluetooth function As it also uses APTX LL low-latency technology,it also supports real-time sound transmission for games,TV and movies Specification: Bluetooth version: 5.2+EDR Input port: USB/AUX Transmission distance:> 10 meters Frequency range: 2.402GHZ-2.480GHZ Supported protocols: aptX LL,aptX,SBC,A2DP,AVRCP Device power: USB 5V Support equipment: connect two stereo headsets/Bluetooth speakers at the same time Package included: 1 x Bluetooth-compatible Audio Transmitter 1 x 3.5mm AUX Cable 1 x 2db Antenna 1 x English and Chinese User Manual