Like A Sports Car, Wireless Ergonomics Metal Mouse Has A Structuralist Appearance And Smooth Lines. Our Wireless Ergonomics Metal Mouses built-in high-quality rechargeable battery means you can recharge whenever you want. When you leave your mouse for more than 5 minutes, it will automatically get into sleep mode which saves electricity for the mouse, and click any button for waking up the mouse again! This special wireless mouse is suitable as a gift for friends, lovers, and family. OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.