Feature: 1. Long Distance Transmission: Wireless keyboard mouse adopts 2.4G wireless technology, which can realize 10 meters wireless transmission. 2. Energy Saving: Wireless keyboard mouse combos has an intelligent sleep mode, which can intelligently sleep when not in use, saving energy and electricity. 3. Comfortable to Use: The wireless mouse adopts ergonomic design, which is comfortable to hold, and it is not easy to be fatigued after long term use. 4. Easy to Use: USB wireless keyboard mouse combos is easy to use, plug and play, no complicated procedures. 5. Small Portable: 2.4G wireless keyboard mouse has a compact structure design, light weight, and convenient to carry when going out in the office. Specification: Item Type: Wireless Keyboard Mouse Combos Material: ABS Keyboard: Working Mode: 2.4G Wireless Transmission Distance:Approx. 10m / 10.9yd Working Frequency: 2408-2474MHz Working Voltage: 3.7V Interface Type: USB2.0 Battery Model: 2 AAA Batteries (not Included) Coding Matching Method: ESC+K Mouse: Working Mode: 2.4G Wireless Transmission Distance: Approx. 10m / 10.9yd Interface Type: USB2.0 Battery Model: 2 AAA Batteries (not Included) DPI: 800/1200/1600. Package List: 1 x Keyboard1 x Mouse1 x Receive Note: Ship without battery.