This wireless mouse uses vertical and ergonomic design, which conforms to the line of you hand and will not make your hand feel stressful after long-time use. Using 2.4GHz wireless technology, this wireless mouse has strong signal reception and sensitive response and can bring you smooth using experience. It is constructed of ABS material. It is easy and convenient to use this wireless mouse because it is plug play. The length of this product is 12cm, the width is 7.8cm and the height is 6.9cm. This wireless mouse is suitable for office. Item Name: Wireless Mouse Material: ABS Operating Distance: 10m Working Mode: Photoelectric Interface: USB Wireless Transmission Frequency: 2.4GHz Photoelectric Resolution: 1200DPI Number of Keys: 3 Buttons Battery model: 2 x AAA Batteries (Not Included) Features: Sensitive, Ergonomic, Mute Size Details: L: 12cm/4.72", W: 7.8cm/3.07", H: 6.9cm/2.72"(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 Mouse 1 x Receiver