1.USB/Optical Audio Transmitter - ①USB Transmitter: wirelessly transmit audio from laptop/desktop to Bluetooth headphones or speakers via USB port, plug and play. ②Optical Transmitter: transmit audio from non-Bluetooth audio sources (TV, TV Box, Switch / PS / Xbox Console, etc.) to Bluetooth headphones or speakers via the included optical fiber cable. | 2.Use High-Performance Bluetooth 5.0 + EDR chip to eliminate annoying delays when playing games. Ensure smooth transmission, enjoy the excellent gaming experience and lossless CD sound quality. Note: When using on Xbox, you need to connect the optical cable to at the same time, because the Xbox series USB port cannot transmit data and is only for power. | 3.Low Delay - The Bluetooth audio adapter can reduce Bluetooth delay to provide CD-level high-fidelity stereo sound quality when you listen to music. Stream and control your music with a reliable connection range of up to 33ft(10m). *Operating range can be affected by multiple factors. | 4.Dual Link Music Streaming - Share music with your friends by simultaneously connecting 2 Bluetooth headsets / speakers to your TV PC Switch/PS/Xbox console. Automatically connect to your previously paired devices at power-up.4.Dual Link Music Streaming - Share music with your friends by simultaneously connecting 2 Bluetooth headsets / speakers to your TV PC Switch/PS/Xbox console. Automatically connect to your previously paired devices at power-up. | 5.USB Power Supply - USB has power function. During use, power must be supplied through USB port, you don’t have to worry about running out of power while listening to music. *When used on computer, audio transmission and power supply are realized through the USB port.