Features: 100% brand new and high quality. 2.4GHz wireless provides a powerful and reliable connection, convenient to use. Slim ergonomic design will fit in your palm, comfortable to grip and avoid tired. With 4 keys, include scroll wheel, page forward/backward buttons for easy Internet surfing. Portable and weight light, very convenient to carry and store. Specifications: Material: Plastic Power Supply: 2* 500-1200mAh AAA battery(Not Included) Interface: USB Output Voltage: 1.5V Wireless Technology: 2.4GHz Wireless Distance: 10 meters Button Number: 4 buttons Package Include: 1 * Wireless Mouse 1 * USB Receiver PORTABLE & ERGONOMIC DESIGN：symmetrical and ergonomic design conform to your hand and is naturally comfortable, so you won't feel tired even long-term use. Atsame time,compact size of this slim portablemakes it easy to take with you wherever you need it, at home, at work, or anywhere, providing an incredible user experience. Auto Sleep & Saving Energy：wirelesswill automatically enter sleep mode to save power if in no use for a few minutes. Click any buttons to awake it. 3 Adjustable DPI：3 DPI levels (1000-1600-2400) allows you to changecursor sensitivity easily and track more smoothly over a variety of surfaces.It can meet both ordinary and gaming needs. Optical laser allows for quick response, precise movement, and smoother tracking. ONLY 1 AA BATTERY IS REQUIRED：This batterycan be powered by only 1AA battery (not included), and due to special chips, it will enter auto power-saving mode after 1 minute of idling, or enter sleep mode after 8 minutes of idling, which makes this laptopa much longer battery lifespan (up to 15 months). 【Versatile Functionality】This product is multifunctional and can be used for a variety of tasks, providing you with the flexibility and convenience needed to handle multiple uses with a single tool. Note: Please allow 1-3 mm error/1-3g weight error and actual product color may vary due to lighting conditions.