Note: This product supports Win7/8.1/10/11 and Linux, but other systems are not supported. For Win7 and For Linux must be installed with drivers. It is driver-free for Win8.1 and above systems. This product is not supported on Mac OS/IOS systems. Product name: Bluetooth 5.3 USB adapter Specifications: Bluetooth version: Bluetooth v5.3 (compatible with 2.0/4.0/5.0/5.1/5.2) Frequency range: 2.4GHz(2402-2480MHz) Rated voltage: DC 5V Interface type: USB Transmission distance: 0 20m Transmission rate: 3.0Mbps(max) Support systems: For Windows7/8.1/10/11, Linux (Windows8.1/10/11 free drive). Package Included: 1*USB Bluetooth Adapter Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin