Bluetooth 5.0 Nano USB Adapter - Bluetooth 5.0 – Applies the latest Bluetooth 5.0 technology, backward compatible with Bluetooth V4.0/3.0/2.1/2.0/1.1 - Wireless Connectivity – Provides stable and convenient communication between Bluetooth devices and your PC or laptop - Nano-Sized – Ultra-small for convenient portability with reliable high performance - Supported Operating Systems – Windows 11/10/8.1/7