Brand – Havit, Model – Havit KB558CM, Series – Regular, Style & Size – Regular Big, Type – Keyboard & Mouse Combo, Connection Type – Wired, Interface – USB, Language (English) – Yes, Language – English, Lighting – Yes, Fingerprint Sensor – No, Mechanical (Key) – No, Mouse, Touchpad – Keyboard & Mouse, Scrolling Control – Wheel, Wheel – Yes, 2X Click – No, Click Sound – Yes, Mode – Single, Max DPI – 2400 DPI, Tracking Type – Optical, Dimensions (WxHxD) – 484.5 x 207.5 x 32mm (Keyboard), 130 x 70 x 40mm (Mouse), Weight – 0.758 Kg, Compatibility – Windows Supported PC & Laptop, OS Support – Windows, Color – Black, Specialty – Super laser engine technology, match advanced laser led shading technology, move freely and smoothly. Tamper- proof magnet ring, noise-proof magnet ring shield the electromagnetism disturb from surrounding, assure the accuracy and steady of the optical orientation. Heavy concrete design in the afterbody, remove more steady, orientate more accurate. 2-level high-strength supporting foot. The keyboard can auto sleep if it is not in use for 10 minutes. To reactive, just press any key., Others – Key Lifetime: 10000000 Times, Current: 200mA, Voltage: 5V, Resolution: 800/ 1200/ 1600/ 2400 DPI, Feature – LED light on Keyboard and mouse, 19 anti-ghosting keys on keyboard, Multimedia function keys on keyboard, Warranty – 1 year, Country of Origin – China, Made in/ Assemble – China