Item Type: Vertical Mouse <br>Material: ABS <br>Color: Black <br>Connection: 2.4G Wireless Connection <br>Wireless Frequency: 2402-2480MHz <br>DPI: 800-1200-1600 DPI <br>Buttons: 6 (Left, Right, Wheel, Forward, Backward, DPI Switch) <br>Battery: 2 x AAA Battery (Battery Not Included)1、Stable Transmission: This vertical computer mouse adopts 2.4G wireless technology, which provides 10 meters stable transmission and low delay. <br>2、Powerful Engine: This vertical computer mouse possesses powerful optical engine, which ensures quick response and accurate control. <br>3、Ergonomic Design: This vertical computer mouse features ergonomic design that reduces muscle strain, wrist pain, keeping your hand and arm in a more comfortable position. <br>4、Adjustable DPI: This vertical computer mouse supports 3 levels adjustable DPI (800?1200?1600DPI), and easy to adjust and position. <br>5、Plug and Play: This vertical computer mouse is equipped with USB receiver and it supports plug and play, providing more convenience.1 x <br>Vertical Mouse<p>1 x USB Receiver</p>