Features: HERO 25K SENSOR: HERO is capable of 400+ IPS across the 100 - 25600 DPI range with zero smoothing, filtering or acceleration. HERO 25K achieves competition-level precision and the most consistent responsiveness ever. Be sure to customize and tune your DPI settings using Logitech G HUB. 11 PROGRAMMABLE BUTTONS: Use Logitech G HUB to program your favorite commands and macros to each of the 11 buttons. Build, crouch, melee, heal … put your power moves at your fingertips. Save ready-to-play profiles directly to the mouse to take your settings with you anywhere. ONBOARD MEMORY: Use Logitech G HUB to save your settings to the on board memory on the mouse and take them with you. Your saved settings will work on any PC without additional software or any login required. DUAL-MODE HYPER-FAST SCROLL WHEEL: Unlock the scroll wheel for hyper-fast continuous scrolling to spin quickly through long pages, or lock it down for single click precision scrolling. TUNABLE WEIGHT: Fine tune mouse feel and glide to your advantage. 6pcs (4*2g,2*4g) weight stack are configurable in a variety of front, rear, left, right and center weighted configurations. Experiment with the alignment and balance to find the sweet spot to optimize your gaming performance. RGB FLASHLIGHT: About 16.8 million colors of the spectrum can be personalized to each button backlight color. The keyboard supports LIGHTSYNCTM light effects that respond to music rhythms and your movements in popular games. Specification: Model: G502 HERO Wireless Size: 132x75x40mm Weight: about 114g Sensor: HERO 25K Optical Resolution 100 - 25,600 DPI IPS: 400 IPS Report rate: 1000 Hz (approximately 1 ms) Number of keys: 12 keys (left/right) Service Life: about 50 million times the main key life Cable length: about 2 meters Packing List: 1 x Wireless Mouse 4 x 2g Detachable counterweight Block 2 x 4gDetachable counterweight Block 1 x User Manual