Mini small portable pocket computer mouse for travel; 3.23 * 1.97 * 1.26 inch, net weight: 1.4 oz Wireless optical mouse for laptop with USB receiver, powered by 1 * AAA battery (not included), 1600 DPI, 3 buttons The USB receiver is placed at the bottom of the mouse; to find the location of the battery, please open the top cover gently from the back 2.4 GHz fast wireless transmission, the operating distance is up to 10 meters; Compatible with Windows XP, Vista, Win 7, ME, 2000, Mac, Linux and more If you do not connect, please turn off the mouse switch, lower the USB receiver, then plug in the USB receiver and turn on the mouse switch again, press the 3 buttons (left button, right button, scroll wheel) together at the same time for about 3 to 5 seconds aOur products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store