This mouse keyboard combo is made of , which can withstand use. Features the ABS material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. Features -Color: Silver -Material: ABS, electronic components -Size: 28.50X13.70X1.70cm/11.20X5.38X0.67in Battery: 4 x AA in total (not included) Distance: 10m : 2.4G Channel: 16 Working voltage: 3V - Smart , keyboard and mouse will enter sleep during idle, very power saving. - 2.4GHz transmission technology, high-speed and stable transmission, strong anti- . - You can use it at ease indoor and outdoor, great using experience. - mouse and keyboard combo, get rid of the hassle of cables tangling. - Special design and it is in fine craftsmanship. It is the best replacement for your old, broken one. Package list: 1 x keyboard 1 x mouse 1 x USB receiver