【Upgraded Bluetooth adapter 5.3 + EDR】: The upgraded Bluetooth USB adapter uses the latest upgraded Bluetooth 5.3 + EDR technology. The anti-interference ability and stability is enhanced, and the transmission efficiency loss caused by interference in the 2.4 GHz frequency band is reduced. | 【Ultra-Small Size】: The stylish and compact design makes the upgraded Bluetooth receiver perfect for placing on a laptop or PC without even noticing it. You can easily carry it on your laptop without blocking the USB ports next to it. | 【More Stable Connection】: The upgraded Bluetooth 5.3 dongle has a more stable connection with transmission rate of up to 3Mbps. The configuration of Bluetooth low energy (BLE) and dual-mode Bluetooth transmission can obtain faster data transmission speed. The transmission distance can reach up to 30m in an open place. | 【System support】: Real Plug & Play, no need to install the driver anymore. USB Bluetooth adapter only supports Windows 11 / 10 / 8.1 (Not support Mac, Linux, Unraid, TV, car stereo, PS4 or xbox). Backward compatible with Bluetooth 5.2/4.2/4.0/3.0/2.1. | 【Wide Range of Applications】: The upgraded wireless Bluetooth adapter can connect multiple devices, such as Bluetooth speakers, keyboards, headsets, and mice. You can make full use of the Bluetooth adapter to wirelessly transfer files while enjoying music.