Ideal for 450 class helis and .25-.35 fixed wing aircraft Profiles can be custom designed on a PC with the Castle Link PC programming software (software not included, can be downloaded for free from Castle's website, voucher is included for free Castle Link Programmer) User programmable white auxiliary wire can be used for governor gain input adjustments, serve as an audible beacon after a crash, act as an RPM output for 3 axis gyros that support RPM sensors, and used as an ESC or receiver arming lock One year limited warranty through Castle Creations beginning at date of purchase INCLUDES: Phoenix Edge Lite 75 Amp ESC with Instruction Sheet Voucher for free Castle Link Programmer REQUIRES: Battery and motor connectors of modeler's choice SPECS: Input Voltage: 2S-8S LiPo Max Continuous Amps at Full Throttle: 75 Dimensions: 1.2 x 2.6 x 0.8" (30.5 x 66 x 21.4mm) Weight: 2.9oz (81g) with wires 1.4oz (41g) without wires