Bluetooth 3.0 and 2.4 GHz wireless USB-A receiver to connect to a PC, tablet and smartphone, Pairs with up to three devices at the same time and easily switches between them, Compatible with Windows, macOS, Android, iOS, Chrome OS, iPadOS and Linux, Windows and Mac keys plus 12 multimedia function hotkeys, Wireless freedom with effective range up to 10 m (33 ft.), Auto-power management and handy on/off switch to lengthen battery life up to 1.5 years, Scissor-style (X-structure) key switches to reduce typing noise and offer precise keystroke response, Sleek, compact design only 285 mm (11 in.) wide, ideal for small workspaces.Rubber feet to prevent slipping and to protect your desk from scratches, On-board storage compartment to protect USB receiver from loss and damage. Requires two AAA batteries (included) Plug-and-play installation; no configuration required. Three-year warranty.