ship from Japan Logitech G G304 Wireless Gaming Mouse] The G304 is a wireless entry-level model with 1ms wireless LIGHTSPEED technology, proprietary HERO sensor, 6 programmable buttons, and a compact design that weighs 99g for easy portability. The G304 is a favorite of beginners and professionals alike. Wireless without delayWith ultra-fast LIGHTSPEED technology, the 1ms wireless gaming mouse G703h will free you from the hassle of wired cables Proprietary HERO 12K SensorThe next generation HERO 12K optical sensor provides 10x better power efficiency and maximum tracking accuracy. Custom profile for gaming and fine adjustment of mouse sensitivity is also possible 100~12,000DPI. (Can be adjusted from 1 unit when using G HUB) Reading methodOptical type HERO sensor [Maximum speed] 400 inches per second [Size] - Mouse: 62.15 (W) x 116.6 (D) x 38.2 (H) mm - Receiver: 18.40 x 14.40 x 6.60 mm