Features: 1:Vertical healthy mouse 2.4GHz Wireless Connectivity (USB receiver ) 2:Ergonomic designed to remit and prevent carpal tunnel syndrome. 3:Optical laser technology for precise control 4:User convenience with wow-pen's signature, pen-grip comfort. 5:L/R mouse buttons, 2 thumb buttons, and a clickable scroll wheel , dpi button. 6:You pick the hand position that best suits you. Plug and for play, for Mac. Specification: 1:Project Type: Vertical healthy mouse 2:PRODUCT NAME: 2.4G wireless mouse 3:Brand: HXSJ 4:Wireless Technology:2.4G 5:Wireless distance: 10m 6:Rated voltage / current: 1.2V/20mA 7:Power supply: 2 * AA batteries (not included) 8:Number of keys: 6 keys(4 buttons and 1 wheel (middle button)and dpi(adjustable)) 9:Optical resolution: 800dpi;1600dpi;2400dpi. 10:Color Classification: Black,Gray . 11:Work: Photoelectricity 12:Button click life: 8 Million times 13:Material: ABS 14:Product weight: 87g 15:Item size: 12.5*6.5*7.5cm 16:Packing weight: 125g 17:Packing size: 15.5*8.5*8.4cm 18:System requirements: for Windows 98 / Me / 2000 / XP / Vista / Win 7 / Win8 /10/Vista for Mac OS or latest. Package includes: 1 x Mouse 1 x USB Receiver 1 x English User Manual For 2.4G Wireless Mouse 1. Remove the micro-receiver installed at the bottom of the mouse, insert the receiver into the computer's free USB interface. 2.This is a new generation of vertical mouse, comfortable grip, suitable for office, games, etc., support ergonomic design.6D Wireless Mouse 2.4GHz gaming game mouse Ergonomic Design Vertical mouse 2400DPI JOY Wrist Pain USB Mice For Laptop PC 3.Note: This mouse requires 2*AAA battery, there is no battery inside the mouse! 4.This wireless mouse vertical ergonomic design for you, help you get rid of tireness after long use of the wireless mouse. Care more about your for health. Avoidcarpal tunnel syndrome.