/challenges-projects/design-challenges/sudden-impact/b/blog/posts/sfh-parcel-2---more-smaller-stuffThis is supplemental to the main Safe Field Hockey posts. This can be skipped More stuff arrived today! To those wondering why a 3.5mm jack is involved, the ECG Leads have a 3.5 mm 3 pole connector already on them. As they say, "If it ain&#...en-USTelligent Community 12