With plug and play, it can be used conveniently without driver. With full version of the driver installed, the computer can connect to the bluetooth-compatible headset/ stereo. Using bluetooth-compatible 5.0 dual-mode chip, it has faster transmission speed, lower power consumption and more stable signal. Made of ABS and metal high quality material, it is lightweight and sturdy. It is small in size and light in weight, which is easy for you to store and carry. The length of the product is 2.2cm, the width is 1.5cm and the height is 0.8cm. When the computer is for Windows 8/8.1/10 system, bluetooth-compatible 4.1/4.2/5.0 is automatically compatible. By using this bluetooth-compatible adapter, the computer can connect bluetooth-compatible headset, bluetooth-compatible mouse, bluetooth-compatible keyboard, bluetooth-compatible speaker, mobile phone/tablet computer, etc. to enjoy music and transfer files easily. Item Name: bluetooth-compatible Adapter Material: ABS,Metal Interface Type: Universal USB Interface Support Operating System: for Window XP/Vista7/8/10 Transmission Rate: 10Mbps Transmission Distance: 20m Backward Compatible: bluetooth-compatible 2.0/2.1/3.0/4.0 Specification, bluetooth-compatible 4.1/4.2/headset/Audio Working Frequency: 2400MHz Bluetooth Version: 5.0 Function: bluetooth-compatible Extension Size Details: 2.2cm x 1.5cm x 0.8cm/0.87" x 0.59" x 0.31" (Approx.) Notes: By using this bluetooth-compatible adapter, the computer can connect bluetooth-compatible headset, bluetooth-compatible mouse, bluetooth-compatible keyboard, bluetooth-compatible speaker, mobile phone / tablet computer, etc. to enjoy music and transfer files easily. 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: 3 x 1 x bluetooth-compatible Adapter