The E-flite® servoless payload release enables you to drop a single payload while in flight, or enables you to use multiple devices to drop multiple payloads using only one channel on your receiver. It can also be used as a tow release for sailplanes. * Plugs directly into the receiver using standard servo connectors. * Connect and control multiple mechanisms with a single radio channel. * One-by-one and programmed delay modes. * Electronic and manual release mechanisms. * Ready to use and easy to install. Specs: Length: 3.10 in (79.0mm). Width: 0.61 in (15.5mm). Height: 1.10 in (27.0mm). Weight: 0.63 oz (18.0 g). Current Draw Idle: 6mA. Current Draw Stall: 350mA. Voltage: 4.8–8.5V.