Your Quickcoys motion decoy system is propelled through the water with a small 12V motor that is equipped with a small brass propellor. This propellor turns at a relatively high rate of speed. Although the propellor blades themselves are not sharp, caution should be used whenever you are near the functioning device. It is recommended that you place the device FIRST while holding the battery box with the on/off toggle switch, then step back from the device and activate it with the on/ off switch and immediately drop the box as the anchoring point. In this manner you will avoid any chance of coming into contact with the spinning propeller. Likewise, when picking up the device, always pick up the battery box first by retrieving the power cord and lifting slowly until the the battery box can be seen under the surface of the water. Once you have the battery box in hand, flip the switch to the off position and you can now retrieve your Quickcoys safely.