for small jets the BIC is the perfect double battery controlled, regulated output and all the important informations like current and voltages and battery (mAh) used..

and is one battery is dead or not connected..it makes sure you ear it!!!

and no, there is no need of external switch on the BIC...you can add it, but is not mandatory

in the last version, the come completes with the wiring BIC-RX included and spare battery plugs