【Wireless Headphone】Connect to mobile phone or Bluetooth audio device via Bluetooth 5.0.It is low latency, enhanced sound quality. headphone is build-in microphone that can make phone call through the headphone.,【USB Transmitter for PC】The USB transmitter can be directly connected to the computer. After the headset and transmitter are paired automatically, the computer will automatically install the driver, so that the sound of the computer can be transmitted to the headset. Note: In this mode, you only adjust the volume through headphones, computer cannot adjust the volume.,【USB Transmitter for TV,3.5mm audio device】Connect the USB transmitter and source device through the 3.5mm audio cable. The transmitter’s USB plug is plugged into the 5V power supply, and then the headset is automatically paired. The wireless Headphone function is realized by USB transmitter transmit sound to headphone. Note: This king of connection the sound transmitted is not in stereo.,【Wired Headphone】Using the 3.5mm audio cable connect headphone and audio device, the headphone can be used like wired headphone. Note: All button can't work at this mode.,【Buy Notes】You should check your device’s audio output before buy. It is support Bluetooth device, 3.5mm headphone jack of device, USB of computer.