Note: 1. Win8 and Win8 above systems are free of drive, and the data transmission efficiency can reach 3Mbps 2. Multiple devices such as mobile phone or tablet can be connected at the same time, no data cable is required, and the antenna can be adjusted SPECIFICATION: Interface: Full-speed USB 2.0 ISM Band: 2.402-2.48GHz Bluetooth EDR data rate: Up to 3Mbps Software Support: Realtek Driver System Support: Windows7,Win8,Win8.1,Win10,Win 11 Support Profile: Serial Port,Object Push,File Transfer,LAN Access,Personal Area Network,Audio Geteway, Heatset HID,Keyboard,Mouse,HCRP(Printer Cable Replacement) LED Indication: Power on,Linking,Standby Operating Temperature: -10-50℃ Storage Temperature: -20-70℃ FEATURES: 1.Using the latest Bluetooth 5.0 chipset, greatly reducing the power consumption of Bluetooth. With the support of enhanced data transmission rate (EDR), the data transmission rate of Bluetooth technology is greatly increased to 3Mbps. Easily enjoy music, transfer files, and entertain. 2.Enhance the anti-interference ability and stability, and reduce the loss of transmission efficiency caused by interference in the 2.4 GHz frequency band. Faster and further working distance than Bluetooth 4.0. Supports Bluetooth speakers, headsets, keyboards, mice, Bluetooth printers, and stereo headsets. 3.Experience the wireless freedom of the home! With Class 1 radio technology, the transmission distance can be up to 100 meters in an open place. You can enjoy lossless music and achieve wireless freedom. Note: The operating range will be affected by physical obstacles and wireless interference. 4.The Bluetooth 5.0 screener is suitable for 32 or 64bit Windows 10 or 8 or 7. It can also make full use of bandwidth to connect multiple Bluetooth devices at the same time, such as Bluetooth headset or speaker or mouse or keyboard, smart phone. Not applicable to Mac OS, Linux, TV, car stereo. Package included : 1xBluetooth Adapter Warm Tip: 1.Due to the light and screen setting difference, the item's color may be slightly different from the pictures. 2.Please allow slight dimension difference due to different manual measurement. 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.