Sunffice Ergonomic Mouse, 2.4G Wireless Vertical Optical Mouse, Ergo Mouse High Precision Optical Mice with Adjustable DPI 800/1200/1600DPI for Laptop, Desktop, PC, MacBook(Wireless Black)

NOTE: 1.Next/previous buttons can't be used on IOS system. 2.The USB receiver is on the bottom of the mouse. 3. Due to the innovative design of ergonomic mouse, please continue to use several days to get used to it and enjoy the full comfortable feel. Feature: Easy-access use.Plug and play directly, 6 Buttons give you improved control over your computer's systems. All buttons are activated with a reasonable level of force. Comfortable touch and combines a handshake grip with easy-access buttons. Working on many different surfaces and ideal usage for home, office or game Specifications: Weight: 110 g Voltage: 3V Material: Plastic ABS Connectivity: Wireless Battery :?Required Two AAA Batteries (not included in the package) Dimension: 4.8 x 2.48 x 3.18 inch Package includes: 1 * Wireless Vertical Mouse 1 * Instruction Manual 1 * 2.4G USB Receiver ( in the bottom of the mouse )