Compatible with Windows system, no need to install the driver, just plug it in and use it. Equipped with a high-performance Bluetooth 5.3 chip, the signal is stable and high-speed transmission, the response is fast, and the delay is rejected. Support Switch, , and other game consoles to connect to Bluetooth devices in TV mode. It is backward compatible with Bluetooth 2.0, Bluetooth 2.1, Bluetooth 3.0, Bluetooth 4.0, Bluetooth 4.2, Bluetooth 5.0, Bluetooth 5.1, and Bluetooth 5.2 specifications. The USB2.0 interface is more versatile, and the ultra-miniature body is portable. Bluetooth standard: V5.3 (BR/+) Supported devices: PC, Switch, , Pro, and other devices with USB sound card function Drive: free drive Compatible Bluetooth: V4.2 / V4.0 / V3.0 / V2.1 + Support protocols: support A2DP, AVRCP, HFP, SCO, ESCO, LE and BR, , , GFSK-/4DQPSK and 8DPSK modulation IC model: ATS2831 USB extension port: USB2.0 Working voltage: DC 5V (MAX5.75V) Transmission frequency: 2.402Ghz-2.480Ghz Color: Black Material: ABS Package Contents: 1 x Bluetooth Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.