Bluetooth 5.3 Chip Using Realtek chip to ensure signal faster and more stable Compatible with Multiple Devices Realize the connection between computer and other Bluetooth devices 20M Long-distance Transmiion Applies the Cla 2 radio technology,distance can reach10-20m in an open place Enjoy CD-Level Sound Quality Support low-latency aptX technology,high sound quality and low latency Bidirectional Transmiion Data Exchange data between smartphone and PC Bluetooth 5.0: 1.Plug and play for Windows 8.1, 10, and 11, Supports Windows 7 (driver required for Windows 7 and could be downloaded via mini CD disc) 2.Bluetooth USB adapter takes full advantage of bandwidth to connect multiple Bluetooth devices(up to 7 devices simultaneously), such as Laptop/Desktop/Bluetooth headsets/speakers/mice/keyboards/Printer,smart phones. Compatible with 32 bit and 64 bit Windows 7/8.1/10/11 Bluetooth 5.1: Bluetooth Standard: Bluetooth V5.1 Frequency range: 2.402-2048GHz Transmiion distance: 10-20m Mini size, sleek design and save space Bluetooth Low Energy (BLE) protocol support. Up to 3 Mbps data transfer rate with Enhanced Data Rate (EDR) support. Compatible with 32/64-bit Windows 10/8/7/Vista/XP Compatible with Bluetooth keyboards/mice/headsets/speaker,and mobile devices.