With the exquisite and compact size, the keyboard and mouse are easy to carry.Under the 2.4G power saving mode, a high-performance battery can be used for 6 monthsThe noise of button is lower closely to mute.It has high sensitivity for you to operate it.Item Name: Wireless Keyboard + MouseMaterial: ABS, PCBattery: Keyboard: 2 x AA Batteries Mouse: 1 x AA Battery (Not Included)Wireless Carrier Frequency: 2402-2480MHzWorking Frequency: 16 (Automatic Frequency Hopping)Keyboard Rated Working Current: 28mA/3VKeyboard Resolution: 1000CPICompatible Systems: for Windows Me/2000/XP/Vista (with an Unoccupied USB Interface)Mouse Rated Working Voltage: 1.5-3VMouse Rated Working Current: 10-15mAMouse Resolution: 800-1200DPIWireless Working Channels: 16 (Automatic Frequency Hopping)Wireless Working Frequency: 2.402-2.480GHzWireless Transmission Speed: 1-2MbpsMaximum Effective Distance: 6-10mMaximum Acceleration: 28 inches/sMouse Button Service Life: 3-5 Million TimesImage Processing: 3000 Frames/sWorking Temperature: -15-60 Degree CelsiusFeatures: Wireless, High Speed Transmission, Low ConsumptionKeyboard Size: 36.8cm x 14.3cm x 2.6cm/14.49" x 5.63" x 1.02" (Approx.)Mouse Size: 11.6cm x 6.6cm x 3.5cm/4.57" x 2.6" x 1.38" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Wireless Keyboard1 x Wireless Mouse1 x Micro USB Receiver