Product details:

Wingbeats are a great way to add realistic movement to any decoy spread replicating birds stretching their wings on windless mornings. Wingbeats decoys come with a 3 stage switch: on off or intermittent. Lightweight and portable they come with a 15 foot wire to connect to any 12 volt battery (not included). In the on position the decoy will flap continuously. In the intermittent mode the decoy will flap for 5 seconds then off for 20 seconds.