Bird-B-Gone Spinning Bird Repeller Uses Solar Energy with Rechargeable Batteries Solar powered bird repeller by Bird-B-Gone with rechargeable batteries spins arms during the night, too. Solar powered bird deterrent uses continuous motion to prevent large pest birds such as seagulls, pigeons, and crows from landing on balconies, boats, AC units, etc. Rotating are mounted on top of the unit. Two adjustable cover up to 5 ft in diameter and turn continuously at 30 RPMs. Solar panel powers a heavy duty, brush-less motor which stores energy in the batteries so the arms turn at night or on cloudy days. The Solar Bird Repeller is portable. Birds are frightened by movement avoid the area. Product Features * Solar Powered * Lightweight / easy to mount * Portable unit with on/off switch * Can be mounted on flat or angled surfaces * Rotates at 30 RPM's * Sweeps birds continually covers up to 5' in diameter * Comes with 2-AA rechargeable batteries for extended operationduring dark periods The Solar Repeller is easy to install and operate. The two metal screw right into the top of the repeller cone. Hardware is provided to attach the solar panel to the side of the unit. Each unit comes with a flash tape, and three rechargeable batteries. The solar repeller needs to be charged under the sun before the unit is operational . Made by Bird-B-Gone This item ships from a separate warehouse and may require extra time for delivery.