Feature: 1. Extreme Speed Transmission: Bluetooth 5.1 technology provides faster data transmission speed, which can realize faster file transfer and fluent sound and video playback, providing a better user experience. 2. Wide Compatibility: The adapter is compatible with for Windows 7/8/8.1/10/11 system, which can meet the needs of more users without system version limitation. 3. Strong Stability: Bluetooth 5.1 has a stronger signal transmission ability, which makes the adapter have a more stable connection performance, whether it is for office or entertainment, it can maintain a stable connection. 4. Dual Mode Support: Bluetooth 5.1 adapter can support both Classic Bluetooth and Bluetooth Low Energy (BLE) to meet the connectivity needs of different devices, such as headphones, keyboards, and mouses. 5. HiFi Sound Quality: The Bluetooth 5.1 adapter supports HD lossless music transmission, providing better sound quality enjoyment so that users can better enjoy music and sound and video entertainment. Specification: Item Type: Bluetooth 5.1 Adapter Material: ABS Bluetooth: 5.1 Compatible System: for Windows 7/8/8.1/10/11. Package List: 1 x Bluetooth 5.1 Adapter