DescriptionThis wireless mouse is made of premium material, which can withstand long-lasting use. Features the ABS material, which has high durability, not easy to deform. Fine workmanship, ensures practicality.Features-Color: Black-Material: ABS-Size: 11.30X6.40X3.20cm/ 4.44X2.52X1.26in Working voltage: DC 3V Working current: 10mA Resolution: 1200DPI Roller lifespan: 1000000 times Switch lifespan: 5000000 times Wireless frequency: 2402-2480MHz Battery: 2 x AAA (not included) - Ball shape roller, comfortable and gentle hand feeling, durable and long lasting. - Working mode, deep sleep mode and standby mode automatically switching for lower power consumption. - Silent button design, keep your concentrated during working or gaming, will not interrupt others. - No longer limited by cable, freely operate within 10m receiving range. - Exquisite workmanship, reasonable structure, professional and practical, can bring you convenience.