Warranty: 3 Year Features: Operating distance: 8–10 meters Keyboard size: 448 × 170 × 26 mm Mouse size: 105 × 62 × 32 mm Battery: 4 × AAA Keyboard IC: Mosart 1386B-3 Mouse IC: Mosart 3812-3 + FTC3065 (Pixart) Easy plug-and-play setup Technical Specifications: 2.4 GHz wireless combo Keys lifespan: up to 10 million clicks USB nano receiver (plug & play) UV-coated keys (fade-resistant) 1200 DPI optical mouse Auto sleep function