Features: LIGHTSPEED wireless technology has 1 millisecond report rate, providing excellent response time and reliability. Adopt the new generation HERO sensor, up to 12000DPI. It accurately reflects your hand movement, achieving accurate performance across the entire DPI range. Lightweight and portable design, built-in receiver storage space, easy to carry and use. Ergonomic design, fit the hand curve, not easy to fatigue, comfortable to use. The mouse is configured with 6 programmable keys, stored in onboard memory. Specification: Brand: Logitech Model: G304 Color: Black/White/Purple(optional) Sensor: HERO Resolution: 200-12000DPI IPS: 400IPS Report rate: Performance mode: 1000Hz(1ms), Durability mode: 125Hz(8ms) Key number: 6 Battery: 1*AA battery(not included) Item size: 11.66 * 6.22 * 3.82cm /4.59 * 2.45 * 1.5in Item weight: Approx. 99g /3.49oz Packing list: 1 * Mouse 1 * USB Nano receiver 1 * Receiver extension cable 1 * User manual