Features: Features 2.4GHz wireless technology with 10-15m ranges, strong wall penetration, and anti interferences for simultaneous multi user operations without signals conflicts. For precise cursors control via wrist movements, ideal for web browsing and gaming with mouse like accuracy. Learns commands from TVs, set top boxes, and other devices to consolidate multiple remotes, reducing clutter and simplifying home entertainment control. Combines traditional TVs remote buttons on side and a small keyboard on the reverse, catering to both elderly users and typists. Available in four variants—white backlit/standard/not backlit voice/backlit voice editions—to matching diverse preferences for lighting and voice control features. Specifications: Substance: Plastic+ABS Battery Type: AAAx2(Need to Bring Your Own) Transmission Methods: 2.4G Radio Frequency Wireless Number of Keys: 81 Effective Ranges: 10 Meters Size: Approx. 6.77x2.05x0.75inch(172x52x19mm) Package Includes: 1x Remote Control note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.