After WWN7/XP is installed, the computer can connect to bluetooth headset/stereo, and the phone/tablet can transfer text and photosWn8/8.1/10 no drive (no need to install )The product package comes with a CD, because the file is larger, it is suggested to install directly with CDNo cd-rom user, can contact customer service to download bluetooth driver link.This product only supports the use of WINDOWS system, other systems can not use.Solve the computer no bluetooth problem, achieve bluetooth wireless transmission, no impact on WiFi signalSupport multi - device connection to achieve computer and other devices with bluetooth function connectionBuilt-in antenna, realize 20 meters long distance transmission, the living room can be easily connectedHigh fidelity, low delay digital audio algorithm accurately reproduce full audio broadband, enjoy clear sound qualityWireless Type: BluetoothSound Track: DoubleHigh Definition Support: NoneWIFI Standard: NoneContent: AUDIOInterface: USBSupport AAC: NoSupport Memory Card: NoSupport Apt-x: NoFeature: Bluetooth5.0 chip, low power, fast response, no lag, no lagName: USB bluetooth adapter 5.0Function: extend bluetoothBluetooth version: 5.0Chip: Bluetooth5.0 chipTransmission distance: 20MScope of application: laptop/desktop all-in-one machinecolour:blackMaterial:ABSPackage Contents:1*Bluetooth adapter1*3.5mm audio cable1*instruction manualNotes:WlN7/XP audio transmission requires a driverOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.