A golf size ball emiting IR light powered by 18350 Li-Ion battery with 40khz modulation (8 pulzes of 40khz then off with full cicle of 1.2khz)
You will be able to buy it soon from many places, for now we are taking preorders here cost is 20$ per ball build without battery
Order flex PCBs forexample from JLCPCB and get it asebled or asseble it your self.
Shells are 3D printed, after lot of testing we found out that best option in general is using PCTG for good optical properties/cheap/easy to print/mechanical properties similar to PC
For magnets we are using 2mm*5mm N42 neodimium magnets