Multi-system compatible, can be used on old computers Plug and play without driver: support Windows XP/7/8/10 and mainstream Linux systems, no need to install drivers, plug in the receiver can be used, save the old computer! Office/Home Dual Scenario: Compatible with desktops, laptops, all-in-one computers, old computer upgrade or new device expansion are applicable. 2.4G wireless connection, stable and non-stop connection 10 metres ultra-long distance transmission: using 2.4G wireless technology, signal stability and anti-interference, wall, multi-device interference can still be used smoothly. MINI RECEIVER: USB interface is plug and hide, does not take up other interfaces, easy to carry and not lost. Mute micro-activated keys, late-night office without disturbing people Muted click design: left and right keys, scroll wheel keys are muted micro switch, click sound is less than 30 decibels, library, dormitory, late-night overtime is not noisy. Comfortable hand feel: Ergonomic arc design, fit the curve of the palm, long time use without soreness.