2.4G Rechargeable Wireless Vertical Mouse, Ergonomically Designed 10 Meters Free Control, Built-in 600mah Lithium Battery, Suitable For Office Games Features: 1:2.4GHz Wireless Connectivity (USB receiver) 2: Built-in rechargeable 600mAh lithium battery 3:Ergonomic designed to remit and carpal tunnel syndrome. 4:Optical technology for control 5:Easy to use, comfortable to hold, mouse hand. 6:L/R mouse buttons, 2 thumb buttons, and a clickable scroll wheel , 1 dpi buttons(dpi +/dpi -). Specifications: 1:Item type :2.4G RechargeableErgonomic Optical Mouse 2:Resolution : 800dpi ;1600dpi ;2400dpi. 3:Button : 6 buttons 4:Maximum operating range: 10m 5:Charging cable length: 70CM 6:Material : ABS 7:Button life : 5 million times 8:Battery capacity: Rechargeable 600mAh lithium battery 9:Voltage/Current: 3.7V/10mA Package includes: 1 x 2.4GHz Wireless Mouse 1 x USB Receiver 1 x 70CM charging cable 1 x English User Manual Compact Design for Convenient Travel - this Compact Mouse Has a Small Size and is Very Portable, Providing a Better Travel Experience! Ergonomic Design, Comfortable Grip - the Exterior Design of this Mouse Conforms to Ergonomic Principles and is Suitable for the Natural Curves of the Hands, Ensuring Long-Lasting Comfort and Improving Work Efficiency.The Side Grip Can Provide More Support for the Thumb and Bring an Excellent Work Experience! Long Battery Life - this Efficient Mouse is Very Energy-Efficient， And its Battery Life Allows You to Worry About its Lifespan.And it Can be Plug and Play, Just Plug in the Usb Receiver to Enjoy Seamless Connection. Better than Touchpad: Adding this Mouse to Your Laptop Can Accomplish More Work than a Touchpad Laptop, Improving User Efficiency and Speed! We Attach Great Importance to Product Quality and Customer Experience,If You Have Any Questions About the Product, Please Contact Us Customer Service,We Will Provide You with Satisfactory