Features Bluetooth 5.3: Speed, coverage, security and reliability improvement than last-gen Bluetooth Wireless Connectivity: Provides stable and convenient communication between Bluetooth devices and your PC or laptop Nano-Size: Ultra-small for convenient portability with reliable high performance Backward Compatibility: Work with devices supported the earlier Bluetooth version Supported Operating System: Windows 11/10/8.1/7 Interfaces: USB 2.0 Standards and Protocols: Bluetooth 5.3