This is an optional Receiver Switch Harness with Charge Jack for the Revo. FEATURES: Futaba J plugs Pre-installed receiver pack charge lead INCLUDES: One assembled switch harness REQUIRES: Installation into Traxxas Revo. SPECS: Receiver lead length: 156mm Charge jack lead length: 65mm Battery connector lead: 147mm COMMENTS: This will also work on most other nitro applications. The only difference between this and TRAM3034 is the lead lengths and the switch faceplate design. cmc 07/14/04 ir/jxs