1、BATTERY POWERED: The ergonomic wireless keyboard and mouse combo is battery powered. When not in use for 8 to 10 minutes, it will enter auto sleep mode to save battery life. 2、PLUG AND PLAY: 2.4GHz signal provides up to 28 feet of connectivity range, allowing you to use your PC over long distances, and the high rate of return allows the combo to ensure its stable and smoothly transmission without latency and skipped frames, thus enhancing your typing experience. 3、COMPATIBLE WITH OPERATING SYSTEMS: 12 multimedia hotkey functions provide you with shortcuts to music, email, movies, the web and more. Compatible for Win 2000 / ME / XP / 7 / 8 / 10/VISTA and for OS X. 4、1600 DPI: The mouse has three adjustable sensitivities of 800/1200/1600 DPI and comes with a support kickstand on the bottom of the keyboard for more stable to operate. 5、APPLICATION: Keyboard and mouse combo with 104 quiet and comfortable keys keyboard and 4 keys wireless mouse. Suitable for desktops, PCs, laptops, computers, smart TVs and more. Item Type: Wireless Keyboard and Mouse Combo Material: ABS Keyboard Battery: 2xAAA Battery (Battery Not Included) Mouse Battery: 1xAAA Battery (Battery Not Included) Keyboard Size: Approx. 441 x 141 x 33mm / 17.4 x 5.6 x 1.3in Mouse Size: Approx. 105 x 66 x 34mm / 4.1 x 2.6 x 1.33in Keyboard Keys: 104 Keys Mouse Keys: 4 Keys Keyboard Connection: 2.4G Mouse Connection: 2.4G DPI: 800/1200/1600 Keyboard Adjustable Angle: 6° 1 x Keyboard 1 x Mouse 1 x Mouse Receiver 1 x Instruction Manual