BAJEAL M500 Dual-Mode Rechargeable Gaming Mouse

Two radios, not one. The 2.4 GHz receiver goes in the desktop and Bluetooth pairs straight to a laptop or tablet with no dongle at all, so one mouse covers both machines and switches between them rather than being unplugged and replugged.

It charges rather than eats batteries — a 3.7 V cell behind a micro-USB port on the nose — and the whole thing is 110 g, light for a mouse this size. Six keys including forward and back on the thumb, DPI stepping through 1200, 1600 and 2400 on the key behind the wheel, RGB along both flanks and an electroplated scroll wheel that catches it.