Bluetooth Transmitters features: Mini Bluetooth 5.0 Transmitter Wireless USB Dongle Adapter for PC Windows 7/8/10 Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. Bluetooth 5.0 adapter Support system: Windows 7/8/8.1/10 Support Multiple Devices: Support Mobile phones, desktop/laptop, Bluetooth headsets/speakers/ mouse/keyboard, digital cameras, fax machines, printers and other wireless connections for audio and data transmission and sharing. 20m Long Receiving Distance:(No obstacles and no interference): Without any obstacles, the longest transmission distance can be up to 20m, Considering that the Bluetooth signal is interfered by other devices, the recommended best use distance is 5-10m. Apple devices are not supported. High-performance chip Bluetooth USB 5.0 Adapter makes the Computer to have Bluetooth Receiver function, easily enjoys music, transfer files, entertainment during work. More stable and smooth transmission rate Bluetooth USB adapter is equipped with the intelligent 5.0 Bluetooth chip, Can transfer files / photos without internet,Support 3Mbps transmission rate, provide higher speed file and audio transmission. faster than Bluetoo