Features:  Perfect combo set for you: Wireless QWERTY Keyboard + Wireless Mini Optical Mouse.  2.4GHz wireless technology， no messy cables anymore and you can play computer games on bed or in sofa comfortably.  Comfortable and excellent key touch feeling to release your fatigue in operation.  Hot keys to increase your working efficiency.  Plug and play， with a range up to 10 meters working distance.  The keyboard will turn to sleep mode automatically when idle.  Mouse DPI 800/1200/1600 is adjustable.  Keyboard and Mouse are both powered by 2 pieces of AAA batteries(not included).  Note:  Keypad film not included.  For non-working circumstances， please double check the batteries and unplug all parts then reconnect and try again.  Specifications:  Frequency: 2.402~2.48HZ  Distance: 10M/ 32.8FT  Number of keys: 111 pieces  Keys life time: About 300，0000 times  OS: Windows Me/2000/XP/Vista/7/8 or Android 4.0 or above  Keyboard size: 43 * 12 * 2.8cm/ 16.9 * 4.7 * 1.1in(L * W * Max.H)  Mouse DPI: 800/1200/1600 (adjustable)  Keyboard battery: 2 * AAA batteries (not included)  Mouse battery: 2 * AAA batteries (not included)  Color: White  Material: ABS  Item weight: 523g/ 1.15Lb  Package size: 50 * 12.5 * 3.2cm/ 19.7 * 4.9 * 1.3in  Package weight: 622g/ 1.37Lb  Package list:  1 * Wireless Keyboard  1 * Wireless Mouse  1 * USB Receiver