Features: 1.Wireless transmission provides an operating distance of up to 10 meters, no receiver or cable is required, and fast and reliable connection can be enjoyed. 2.Three?Level DPI can be adjusted to meet a variety of needs, whether the mouse is used in daily work or playing games. 3.Ultra?Thin and smart, easy to carry, and can be used on the computer at home, or can be used anywhere else. 4.The unique design makes the hand feel comfortable, and the control and comfort are greatly increased. 5.Long standby time and durable, and uses BT 5.0 and 2.4G wireless technology, which has a variety of options and simple to operate. specification:Item Type: Wireless Mouse Material: ABS Resolution: 800-1200-1600DPI Wireless Technology: BT 5.0 + 2.4G Wireless Working Method: Optical Button Life: 3 Million-5 Million Times Connection Method: BT Connection + 2.4G Wireless Current: 15mA Voltage: 3.7V Battery Type: 14500 Lithium Battery Battery Capacity: 400mAh (Included) System Support: For Windows/XP/OS X/Vista/Android and Other Systems PackageList:1 x WirelessMouse 1 x Charging Cable 1 x 2.4G Receiver 1 xUser Manual NoteShipped with built?in battery