Completely cut off the current flow and prevent " smoke" - For other smoke stoppers like the automotive light-bulb or resettable fuse, they just limit not stop the current flow, the leakage current may still damage your components. ShortSaver is a different smoke stopper that adopts the electronic fuse to completely cut off the current into your RC build if a short circuit or wiring mistake is detected. Super-fast reaction/protection time - ShortSaver would turn off the power to a device that in excess of the switchable 1A or 2A threshold within just 3ms. It is far more effective than the old way of using light-bulb or resetting fuse. The shorter the protection time, the your build will be as something make break by the time the fuse trips. Power ON/OFF Switch for Easier Receiver Binding - Holding down the bind button and applying power can be challenging sometimes. The new version of ShortSaver added a power on/off switch that can make your receiver binding much more convenient. 1 Amp and 2 Amp Threshold Selector - ShortSaver is so smart that there is 1 Amp or 2 Amp threshold selector for your different needs. For small size build with more sensitive electronic components, you can select 1 Amp option, for large builds, 2 Amp option is the choice. XT60 and XT30 In-output Connectors - ShortSaver is with both XT30 and XT60 connectors, more convenient for your different batteries. Connector:XT30 & XT60 (Input and Output) Switchable current threshold:1A/2A Trip time:3ms (Short-Circuit)/10ms (Over-Current) Input Voltage:7-25V (2-6S) Colour:Blue Material:PC+Metal Size:(L x W x H):42 x 30 x 10 mm Package Contents: 1 * Anti-short circuit protector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.