Dual Power Modes for the Pixart 3212 Gaming Optical Sensor Real-time RGB Lighting Adjustable 800-4000DPI 250Hz Huano 20,000,000 Clicks Polling Rate Lifetime Switches with 10G Acceleration and Up to 30ips 400mAh battery capacity Ergonomic two-handed design; wireless range: 10M; dimensions: 130 x 78 x 38 mm