G304 is a LIGHTSPEED wireless gaming mouse designed for serious performance with latest technology innovations at an affordable price point. and HERO sensor and LIGHTSPEED wireless deliver extreme efficiency to let you game for months. It delivers up to 250 hours run-to-die on just one AA battery. It can be adjusted to last up to 9 months of typical use in Endurance mode, which can be selected via Logitech G HUB. The durable, lightweight design with a small footprint and built-in USB nano receiver storage make G304 a great travel companion.