1、The ergonomic design can provide a smoother and responsive typing experience, and the comfortable feel effectively relieves physical fatigue and finger tingling. 2、Adopting piano grade baking varnish grade craftsmanship, which has strong texture, wear resistance and oxidation resistance, and keeps beautiful for a long time. 3、Wide application, this keyboard mouse combo is suitable for Windows, for Macbook, for Notebook, for Desktop. 4、Flashing red when the battery is too low, reminding to replace the battery, which is convenient to use. 5、The keyboard bottom has 4 nonslip foot pad, which provides stable and prevent slide and accident movement. Item Type: Keyboard Mouse Combo Material: ABS Transmission Method: 2.4Ghz Wireless Mouse Battery Specifications: 2 x AAA Batteries (Not Included) Keyboard Battery Specifications: 2 x AAA Batteries (Not Included) Voltage: 3V Current: 1.5mA Frequency Range: 2402MHz-2480MHz Number of Keys: 78 1 x Keyboard 1 x Mouse 1 x USB Receiver