batts a 20c 250 mAh 3.7v single and no the rx is preinstalled. only comes in BNF no rtf pnf or arf's 119 is what i payed. it is very small but larger than most ultra micros and it has a very large wing area proportionally as well. i love it. and don't worry about the rx at all, it binds easy (i bind back and forth all the time at the field with my homemade bind plug and the mossie doesn't need one) so its super easy! just need a spektrum tx or another rtf um from pz. use a tx from them and i fly mine YARDS away and have full orientation. i have had it at least 100-150 yards out at its longest point (i think I'm not great with yardage) at least the length of aprox. 1.5-2 soccer fields and its small but easy to see. it IS hard to see against thick trees at distance, just look for the motors they can be seen. that and if you loose it in the grass it IS mossy cammo so look hard before you step lol