1. SE69D wireless engine 2. Silent and micro keys, triggers sensitively 3. 15 minutes without operation, it will enter into sleep state to saving power 4. 3 levels adjustable DPI (800/1200/1600DPI) 5. 2.4GHz wireless connection 6. Interface: mini USB 7. Built-in battery, 2.5 hours charging time 8. Size: 132x77x41mm 9. Weight: 110g
