2.4 GHz wireless technology delivers a reliable connection with up to a 10M range Unified nano receiver saves precious computer USB ports, no wires bring you a more tidy desktop Very responsive keys in scissor-key-switches: Silky-smooth whisper-quiet keys, let you enjoy the work without disturb Real compact and slim in full size design: The keyboard size is 5.5*2.16*14.6in which greatly save space for your desktop You will type in more fast way with numeric keys Low power battery indicators and multi-media hot keys provide convenience for you Quiet keyboards and mouse set: The mouse are provided in silent clicking; no disturbance to you and others. Keyboards keys in low profile make much less noise when typing Specification: Material: ABS+PC Connection: 2.4G Operating distance: 10m Applicable system: Mac, Windows, Linux etc. Keyboard power supply: 2 x AA batteries (Not included) Mouse power supply: 1 x AA Batteries (Not included) Keyboard size: 38.6 x 14.3 x 2.63cm Mouse size: 11.6 x 6.6 x 3.5cm Weight of keyboard: 428g Weight of mouse: 60g Package included: 1 x Wireless Keyboard 1 x Mouse 1 x USB Receiver Other things not included