ZOOM Dropper Seatpost w/Remote MTB Bike 30.9 or 31.6 Travel 100mm or 1 – The Bikesmiths
Amazon.com: PerfiPro Airtag Bike Mount, Hidden Bike GPS Tracker Case for Apple Airtag, Airtag Bike Seatpost Reflector Mounts, Anti-Theft Airtag Holder for Bike, Electric Bicycle, Scooter : Electronics
Magura Vyron MDS-V3 wireless dropper post gets faster action w/ no recharging - Bikerumor