Bluetooth 5.0: transmission distance 0-30m, faster and more stable than bluetooth 4.0 version transmission. Free drive: plug and play, no driver installed, mobile phone / tablet can transfer text, photos, install the full version of the driver, the computer can be connected to the bluetooth headset / speaker. Connect the bluetooth mouse / keyboard: get rid of the distance limit, responsive and unlimited. Mobile phone / tablet connected to the computer: no need to open the software, no network can also transfer photos and files. Support multi-device connection: to achieve computer connection with other Bluetooth-enabled devices (mobile / tablet / mouse keyboa rd / bluetooth headset / bluetooth speaker / game controller / printer, etc.)