Features:100% d new and high qualityWinter USB heating mouse comes with 2 types: 4 buttons without backlight function, 6 buttons with backlight function.Long press CPI button for 3 seconds to turn on and off the heating function. Red light shows the heating state, while the green light shows the non-heating state.Our mouse adopts a ergonomic design, which fits perfectly with your palm, allowing players to experience the most comfortable gaming experience.Long-term use without fatigue. Plug & play. Suitable for PC, Computer, Laptop, Desktop USB port, as a gift for Student, friends and more.When you are working or playing in cold weather,this heating mouse not just warm your palm, but also your fingers. Package Includes:1x USB Heating Mouse Specifications:Material: Plastic Color: Black Type: 4 Buttons, 6 Buttons (optional)Mouse Size: approx. 124x66x40mm/ 4.88x2.59x1.57in USB Cable Length: 150cm/ 59.06inAdjustable DPI: 800-1200-1600-2400dpiLeft and Right Key Switch Life: 5 Million TimesWorking Voltage: USB 5V Maximum Working Current: 350mAHeating Function: SupportSystem Compatibility: XP/ Win7/ Win8/ Win 10/ LinuxSignal Indicator: Support (red or green light)Heating Temperature: 40-55 note:Due to the lighting effects and shooting angles, there is color difference in the product, please erstand. Due to manual measurement, there is a tolerance in the product size.