Main Features:�� Compact size and fashionable design�� Ultra-thin， it looks very exquisite on the desktop�� Strong adaptive surface ability: Could work fine at smooth surface�� Using the advanced intelligence wireless network protocol， the keyboard and the mouse are not disturbed mutually�� Advanced 2.4 GHz wireless technology: You can work or play in more places you like�� Multiple battery-safe mode， support wake up function in PC and enter sleep mold automatically while idle�� With USB receiver， plug and play， no need to install a driver�� Power supplyKeyboard battery: 2 x AAA battery ( not included )Mouse battery: 1 x AAA battery ( not included ) Model: JK - 906 Type: Keyboard and Mice Features: Slim Material: Plastic Color: White Interface: Wireless Connection: Wireless Receiver: With Operating voltage: 3V Charging current: 1.5mA Power Supply: AAA Battery Package weight: 0.505 kg Product size (L x W x H): 39.000 x 11.500 x 2.300 cm / 15.354 x 4.528 x 0.906 inches Package size (L x W x H): 45.500 x 12.000 x 3.500 cm / 17.913 x 4.724 x 1.378 inches Package Contents: 1 x Keyboard， 1 x Mouse， 1 x USB Receiver for Mouse and Keyboard， 1 x English User Manual