Mini USB bluetooth-compatible 5.0 adapter, the transmission speed up to 3Mbps. Wireless transmission, low power consumption (1.2-3.6V I/O). Support dual-mode bluetooth-compatible transmission. Support bluetooth-compatible audio data and multi-language. Compatible with bluetooth-compatible 1.2/2.0/2.1/3.0/4.0/5.0. Item Name: bluetooth-compatible Adapter Material: ABS Chip: CSR8510 Bluetooth Version: BT5.0 Interface: USB 2.0 Frequency Range: 2.4MHz Transmission Rate: 3Mbps Distance: 0-20m Supported System: for Windows 7/8/10/Vista/XP/2000/98/ME, etc. Features: bluetooth-compatible Transmission, Low Power Consumption, Easy to Use Adapter Size: 2.56cm x 1.6cm x 0.65cm/1.01"; x 0.63"; x 0.26"; (Approx.) Notes: For Windows 8/10 system, no driver is required; for Windows 7/XP/Vista system, please order the model with driver; it is not suitable for all for iOS devices including for Mac, for iPad and for iPhone. Since the system has stopped the update of the latest drivers, the bluetooth4.0 (LMP6.X) program is currently used, but we are using BT5.0 certified chips. The support for BT5.0 depends on the computer's own hardware. Please avoid obstacles between the adapter and the device, otherwise it will affect the connection distance and effect. 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. Package Includes: 1 x bluetooth-compatible Adapter or 1 x bluetooth-compatible Adapter 1 x Disk Driver