A4TECH 3330N Wireless Keyboard & Mouse Combo ;  2.4GHz Wireless Connectivity with 10-15m Range 1200 DPI  – 16 Mouse Gestures – 12 Multimedia Hotkeys  –  Long lasting Battery | BLACK

A4TECH 3330N Wireless Keyboard and Mouse Key Features: Consistent Wireless Stability: Advanced 2.4GHz powerful wireless connection with a range of 10-15m. Auto-channel stabilizing plug and leave-in nano receiver provide essentially no delays or connection conflicts. Up to 12 Months Battery Life: Energy-efficient engineering ensures long battery life. High quality guarantees over 12 months of usage. Auto Power Saving: Auto 4-level power saving puts the device in sleep mode within 0.2 seconds of inactivity. Smart Wireless SoC Technology: Professional chip reduces circuit loss and interference. 16-in-One: Perform 16 selectable hotkey commands with gestures. 4-Way Wheel: Smart horizontal and vertical scrolling. Additional 2.4GHz Wireless 12 Multimedia Hotkeys  16-in-One Gestures Programmable Commands 1200 DPI Durable Battery Life Drain Holes Design Laser Inscribed Keys  Expert Specs Receiver: RN-20M ( Orange ) Connector: USB Frequency: 2.4G Hz Operating Range: 10 – 15 m Keyboard: GK-3 Keycaps: Traditional Hotkeys: 12 Fn Hotkeys Character: Laser Engraving Adjustable Keyboard Legs: Yes Rating: 3 V / 2 mA Battery: 1AA Alkaline Batteries Mouse: G3-330N / G3-330NS Report Rate: 125 Hz Sensor: Optical Resolution: 1200 DPI Rating: 1.5 V / 4 mA Buttons No.: 3 Ergonomic Design: Symmetric Size: Small / Middle / Big Hands Receiver Storage: Yes Battery: 1 AA Alkaline Battery System Requirements：Windows 7 / 8 / 8.1 / 10 Keyboard Weight: 471 g (w/ battery) Mouse Weight: 83 g (w/ battery)