BBMF - • 80A blast relay for max current delivery • Built in rechargeable battery system with charger, no more 9v battery! • Adjustable trigger • New “track” indicator light • Standard trans-brake • Standard blast button • Standard “dead band” on the 0 position • 11 Launch/Speed selection • 12 “in between steps” that allow you to fine tune each speed setting, making 132 total speed combinations. • 50A transistor system • 5 foot of Ultra MAX cable • Large heavy duty clamp style lead clips • 10 gage lead wire