Features:1.Using Bluetooth-Compatible 5.1 chip, compatibility and stability are stronger. Support V2.0/3.0/4.0/5.0 and other versions.2.Equip Bluetooth-compatible function for your device, to connect other Bluetooth-compatible devices, such as mobile phones, headphones, audio, mouse and keyboard, and so.3.Support up to 7 Bluetooth-compatible devices to connect at the same time, save the USB interface, and meet your various needs.4.After the first pairing is successful, subsequent boots will automatically recognize the connection.5.The connection is simple, without any cumbersome driving and downloading APP.Notice:Actual color may be slightly different from the image due to different display and light effect.Please allow 1-3cm deviation due to manual measurement.Description:Material: ABSSize: 25*17*8mmColor/Style: As the picture shown Package List:1 x Adapter1 x CD Driver1 x Manualcomputers and other devices in the picture not included