this is the new NANO for 6mm motors! first version to be tested! it is made for 6x16mm motors, but also shorter ones can be used ... http://micro-motor-warehouse.com/products/cl-0615-14 Tailmotors from V911or mini-cp tailmotor or sh6025 coax mainmotors. or these ones: http://www.ebay.at/itm/F01120-Nine-Eagles-NE4902001-motor-set-FOR-solo-RC-210A-/270678431639?pt=Radio_Control_Parts_Accessories&hash=item3f05b11797 batterysize: around 150mah 12x6x40 Type,V911, solo pro and others boards: hubsan and 20x20mm micro like V202, h36, ladybird up to 12 3mm leds are possible!