External Mini USB Adapter Portable USB Adapter Receiver Transmitter Low Latency Bluetooth-compatible for Windows System ComputerFeature:1. Detail Display:PCB gold plate, better contact, stable power supply/ceramic patch antenna, longer distance, better performance/ultra-high performance chip, low delay, mini appearance.2. Realize Bluetooth-compatible Function:Solve the problem that the computer does not have Bluetooth-compatible or the computer has a lower Bluetooth-compatible configuration. Bluetooth-compatible 2.0/3.0/4.0/5.0 and other versions are supported.3. Full Compatibility:Win7/8/8.1/10/11 system, Win8 or above drive-free, Win8 downloads driver via system link, does not support for Apple system.4. Easy to Use:Automatic memory, flash back connection, Bluetooth-compatible adapter will automatically identify the link after the first pairing. Multiple devices are connected at the same time, and up to 7 Bluetooth-compatible devices can be connected at the same time, saving USB interface location and meeting various needs of users.5. Applicable Equipment:Windows system computer Android tablet/mobile phone, Bluetooth-compatible keyboard, Bluetooth-compatible device, Bluetooth-compatible headset, audio, printer, game handle.Specification:Color: blackMaterial: aluminum alloy, zinc alloy, ABSGro weight: 10gProduct size: about 14.83 * 14 * 5.3mm/0.58 * 0.55 * 0.20inch Note:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!Please allow 1-2cm measuring deviation due to manual measurement. Packages:1 x Adapter 1. There is no limited stock to fulfill the orders on a daily basis.2. For USA/CA /RU the shipping is quickly.3. Priority delivery,fast delivery in 48 hours.4. No invoice or receip or promotional materials included.