This GPS is customized for Flight control board Super mini size Light weight Best for Racing drones GPS suitable for CC3D Series， like CC3D/CC3D EVO/MINI CC3D/ATOM/CC3D REVOLUTIONNo Compass Specifications: Connection diagram: Black to GND Red to +5V Blue to TX Orange to RX Color: black Size: 25 x 20 x 7mm Wire length: 131mm Net Weight: 9g Package include : 1 x mini GPS 1 x Two-sided sticker Notes: Because of the super mini size ，there is no LED on the GPS， so you'd better use with OSD. Net Weight: 9g