pico and micro are very small servos, requireing small crystals (xtals). I believe 'naro' or narrow refers to the bandwidth. Futaba, Hitec, Tower Hobbies have narrow band receivers.

You should be able to use all your stuff with it. Some say you need a brand-specific xtal to match the brand of the reciever (Rx). Micro receivers generally have a shorter range and should only be used on smaller, closer flying aircraft like park fliers. Again, smaller micro/pico rx's need smaller xtals, but the inputs for battery and servos are the same size.