JR-SPEkTRUM-HiTEC Female connector kit: Consists of 4 x JR Female connector housings and 12 x pins. This JR “Female” connector is what you plug a battery into. This is the same connector as JR Propo, HiTEC, SPEkTRUM, and AIRTRONICS Z. You will need a crimper to attach wires to the metal pins.