Item Type: AdapterMaterial: ABSBluetooth Version: Bluetooth 5.0Operating Range: Up to 10 Meters (without Blocking Objects)Pairing Name: KN330 (in Receiving Mode)T X Mode: Transmitter Mode, Red LED Light OnR X Mode: Receiver Mode, Blue LED Light onPackage List1 x Adapter1 x Sound Cable1 x Manual1[2 in 1] The Bluetooth transmitter and receiver are 2 in 1, and both the transmit mode and the receive mode are 2 channel stereo. The operating range is up to 10 meters. 2[Receiver] USB Wireless Transmitter Receiver supports USB and AUX dual output mode. The USB does not need to be connected to the sound cable, the aux needs to be connected to the sound cable. 3[Transmitter] Support computers and game consoles, plug and play, no sound cable is required to connect to Bluetooth headsets or Bluetooth speakers. At the same time, it also supports other devices (TVs), which need to be connected to the sound cable. 4[Portable] Lightweight wireless sound transmitters and receivers are ideal wireless sound solutions for a variety of situations and uses, and can be used with computers, mobile phones, TVs, home speakers, and car speakers. 5[Bluetooth 5.0 Technology] The Bluetooth adapter has fast transmission speed, high quality stereo music, and enjoys the convenience brought by Bluetooth technology to life. Support for iOS headset, support Bluetooth hands free calling.