Features: 100% brand new and high quality Winter USB heating mouse can regulate the temperature, intelligently timing temperature control. USB safe power supply. 3 temperature levels for your choice, which can be adjusted accoring to your need,with heating on off switch. The 3-button ergonomic mouse adopts a symmetrical design, which fits perfectly with your palm and universal for left and right hands, allowing players to experience the most comfortable gaming experience. Ergonomically designed,long-term use without fatigue. Intelligent connectivity, 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 Buttons: 3 Keys Tracking Systems: Optical Max DPI: 1600 DPI Mouse Size: approx. 11.5x6cm/ 4.53x2.36in USB cable length: 150cm/ 59.06in note: Due to the lighting effects and shooting angles, there is color difference in the product, please understand. Due to manual measurement, there is a tolerance in the product size.