Model - Micropack KM-203W, Series - Regular, Style & Size - Regular Big, Type - Wireless Keyboard & Mouse Combo, Interface - USB, Language (English) - Yes, Language - English & Bangla, Lighting - No, Mechanical (Key) - No, Mouse, Touchpad - Keyboard & Mouse, Number of Button - Keyboard Button: 104. Mouse Button: 3, Wheel - Yes, Max DPI - 1000 DPI, Battery Type - AA, Battery Qty - 1 x Keyboard, 1 x Mouse, Dimensions (WxHxD) - Keyboard: 440 x 158 x 26mm, Mouse: 103 x 62 x 37.5mm, Color - Black, Specialty - 2.4G wireless connection, Transmission distance up to 10M, 1000dpi high precision tracking engine, Clearly letters with UV oil painting, Nano USB receiver, plug & play, Slim design, spill-resistant design, Others - Wireless Technology: RF 2.4GHz, Wireless Range: 10meters, Receiver: Nano Receiver, Key Num: 104 Keys, Mouse Resolution: 1000dpi, Button: 3, OS Supported: Windows 7, 8, Vista, XP, Mac OS X 10.4 or later, Linux, Part No - KM-203W, Warranty - 1 year, Country of Origin - China, Made in/ Assemble - China