Model - Rapoo X8100, Series - Regular, Style & Size - Regular Big, Type - Wireless Keyboard & Mouse Combo, Interface - USB, Language (English) - Yes, Language - English & Bangla, Language (Bangla) - Yes, Lighting - No, Mechanical (Key) - No, Mouse, Touchpad - Keyboard & Mouse, Wheel - Yes, Max DPI - 1000 DPI, Tracking Type - Optical, Color - Black, Specialty - Wireless Multi-media Keyboard & Mouse Combo with Bangla, Reliable 2.4G wireless connection up to 10 meters, Multimedia hotkeys give quick access to functions like media player, homepage, volume adjustment and more, Anti-oxidation sealed membrane, The sealed membrane ensures a longer keyboard lifetime, It prevents oxidizing of the inside circuit, which may cause defect keys, Laser carved keycaps, Keycap printing by laser carving technology that makes it wear resistant, durable and ensures a long lifetime, 1000 DPI high-definition tracking engine, will enjoy responsive and smooth cursor control with the 1000 DPI high-definition invisible tracking engine, Long battery life, Plug-and-forget NANO receiver, So small and unobtrusive, can plug it into a USB port and forget about it, and can say goodbye to worry about lost receivers, Others - Color: Black, Mouse Resolution: 1000 DPI, Part No - X8100, Warranty - 2 years, Country of Origin - Hong Kong, Made in/ Assemble - China