Specifications:Wireless transmission, the longest sensing distance up to 10 meters.Ergonomic design, comfortable to hold and use.Portable and lightweight, very convenient to carry.The wireless mouse is connected by a USB receiver.It is an ideal companion for laptops in the home or office. Item Name: Wireless MouseMaterial: ABSDPI: 800/1200/1600/2400DPIWireless Transmission Distance: 0-10mOperating System: for Windows 98 SE/SME/2000/SXP/2003, for Mac OSBattery: Rechargeable Battery (Included)Wireless Transmission Frequency: 2.4GHzFunction: Wireless, Rechargeable, ErgonomicSize: 13.8cm x 8cm x 3.9cm/5.43" x 3.15" x 1.54" (Approx.) Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes:1 x Wireless Mouse1 x Receiver1 x Charging Cable1 x User Manual