This Cable Techniques BB-DHY-212 Hirose 4-Pin Male to Hirose Male & Hirose Female Y-Cable is a 12" long Y-cable that has one Hirose male connector at one end to connect to the Battery Bud, a splitter box in-line, and one male and one female connector at the other end. The male connector is used to power a receiver, and the female connector can be used to expand the line.