Bird B Gone The Bird Repeller - Solar Powered MMRPSLR1 Uses continuous motion to prevent large birds from landing; covers 5 foot diameter. Refer to the user manual below before use Solar powered. Includes 2-AA rechargeable batteries for extended operation during dark periods Ideal for AC units, patios, pools, boats, swim platforms, furniture, gazebos and more Lightweight, portable, and easy to mount; can be mounted to flat or angled surfaces Humane bird control solution! Will not harm birds! Solar Powered Lightweight / easy to mount Can be mounted on flat or angled surfaces Sweeps birds continually - covers up to 5' in diameter Portable unit with on/off switch