Feature:1. UV Coating: The wireless keyboard features UV coated keycaps and etched ABS keycaps, which prevent sweating and damage to the keycaps2. Comfortable Ergonomics: The keyboard mouse set has an ergonomic design with glossy lines, comfortable hand feel and anti fatigue3. Mute Button: The wireless keyboard has a mute button so you can enjoy comfortable and glossy typing and percussion4. Scope of Application: The computer keyboards mouse is suitable for mainstream operating systems, including desktop computers, mobile devices, tablet computers, etc5. Wireless Design: The wireless keyboard mouse set uses a USB receiver, 2.4G wireless technology can extend the range of the mouse to within 10mSpecification:Item Type: Keyboard Mouse SetMaterial: ABSKeyboard Battery Type: 2 x AAA Batteries Required (not included)Mouse Battery Type: 2 x AAA Batteries Required (not included)Support System: Compatible with Mainstream Operating SystemsApplicable Equipment: for Desktop Computers, Mobile Devices, Tablet Computers, Etc.Keyboard Type: US Keyboard.Package List:1 x Keyboard1 x Mouse1 x AdapterNote:The adapter is on the back cover of the keyboard battery. If not, it is on the back cover of the mouse battery. The keyboard and mouse share a USB adapter! The delivery does not come with batteries, please prepare 2 AAA batteries for each keyboard and mouse.