RAPOO Wireless Optical Mouse & Keyboard Black - 2.4G Connection, 10M Range, Spill-Resistant, Retro Style Round Key Cap, 1000DPI - Black Features: Keyboard  2.4G Wireless connection with 10m working range  Retro style round key design  12 Multimedia hotkeys  Spill-resistant design  Durable Laser carved keycap  1 AA alkaline Battery (Pre-installed)  12 months battery life  Dimension: 447x131x31  Weight:492g Mouse  2.4G Wireless connection with 10m working range  1000DPI optical tracking engine  Left, middle and right button  Two-way scroll wheel  Plug-and-play Nano receiver  1 AA alkaline Battery (Pre-installed)  12 months battery life  Dimesion:113x64x30mm  Weight:59g Package dimension: 525x146x43mm Weight: 598g