Model - Rapoo N1820, Series - Regular, Style & Size - Regular Big, Type - Wired Keyboard & Mouse Combo, Interface - USB, Language (English) - Yes, Language - English & Bangla, Language (Bangla) - Yes, Lighting - No, Mechanical (Key) - No, Mouse, Touchpad - English & Bangla, Wheel - Yes, Max DPI - 1000 DPI, Dimensions (WxHxD) - 44 x 484 x 160mm, Weight - 700 gm, Color - Black, Specialty - USB Keyboard & Mouse Combo with Bangla, Easy installation, No driver needed, plug and go, Easy life, more enjoyment will get, Anti-oxidation sealed membrane, The sealed membrane ensures the keyboard longer lifetime, Because it can prevent the air oxidizing with the inside silver circuit, which may invalidate the keys, 1000 DPI high-definition tracking engine, Will enjoy responsive and smooth cursor control with the 1000 DPI high-definition tracking engine, Spill-resistant design of the keyboard, Others - Mouse Resolution: 1000 DPI, Part No - N1820, Warranty - 2 years, Country of Origin - Hong Kong, Made in/ Assemble - China