[Driver Free] 11/10 computers is to update the driver automatically [Stable & Faster] It is to to 5 devices simultaneously Mini & Portable] Compact design (Size: 21.2 x 14.6 x 9.7MM) with LED indicator [Wide Compatibility] Mouse,Keyboard,Headphones,Speakers,Game Controller & Printer [Automatic Pairing & Connecting] It works with Bluetooth 5.2/5.1/5.0/4.2/4.0 devices Make sure there is no other bluetooth adapters installed in the same computer to avoid errors This adapter does not support OS,ios, 7,Linux,,. Material: plastic colour: black Package Contents: 1 x Bluetooth Adapter Only the above package content, other products are not included. Note: Light reflection 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.