With 2.4 GHz Radio Frequency technology, the Adesso iMouse E10 Wireless Vertical Ergonomic Mouse provides you with wireless convenience and the freedom of a smooth connection for up to a 30-foot range without tangled cables. This ergonomic mouse is designed with a vertical orientation and a contoured shape that provides a uniquely comfortable user experience, With this wrist-friendly contour support, you will hold your hand in a healthy “handshake position” which is the neutral position of your forearm as opposed to the “twisted forearm” position as with a regular mouse, Two internet buttons are conveniently located on the side of the mouse for Back and Forward page browsing, The 800/1200/1600 switchable DPI button on the top provides three levels of mouse cursor speed that is useful in different environments, The advanced Optical Sensor technology keeps the mouse precisely on point and lets you work on most glass, wood, marble, and leather surfaces without a need of a mouse pad, Finally, the iMouse E10 is Plug and Play and requires no drivers, Simply plug the USB Receiver into any available USB port and be ready to enjoy the freedom of a comfortable and wireless mouse experience, Work freely without constraint and mess of cable, Ergonomic Vertical Design: The vertical design provides better support for your forearm minimizing wrist pain that can come from twisting, 50 Degree Vertical Angle: The “hand-shake” grip helps reducing muscle stress and risk of Carpal Tunnel Syndrome, Adjustable DPI Switch: Adjustable cursor moving speed from 800, 1200 to 1600 DPI, Back/Forward Buttons: Provides extra convenience for web surfing and other controls under windows OS, Auto Sleep and Power On/Off Switch: Maximizes your battery life up to 6 months and reduces consumption of batteries, Durable Micro-switch: Up to 10 million times lifecycle, Nano Receiver: Tiny and convenient to plug into to your laptop or tablet, High-precision Optical Sensor: Tracks accurately and precisely on different surfaces, like marble, wood and leather surfaces. WHAT'S INCLUDED: Mouse, USB Wireless Receiver. DETAILS: 3"H x 4.7"W x 2.5"D, Weight: 0.3lbs., Requires 2 AAA (Included), Connectors: USB Interface, Compatible with Windows 2000 / XP / Vista / 7 / 8 / 10, Wireless: RF 2.4G wireless, Wireless range: 30 feet, Manufacturer's 1-year limited warranty. For warranty information please click here - https://cs.kohls.com/app/answers/detail/a_id/140, Model no. IMOUSEE10,. WARNING: This product can expose you to chemicals including Polybrominated biphenyls, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov - https://www.p65warnings.ca.gov/. Size: One Size. Color: Multi. Gender: unisex. Age Group: adult. Material: NONE.