3.5mm audio output board

Custom firmware Android board — Wanlin, 12-year Chinese information display Android motherboard manufacturer (RK3566), WL-IF300 (RK3566 Outdoor High-Brightness Information Board) certified CE/FCC/RoHS. Android 8.1-15, cloud CMS compatible, OEM/ODM from 500 units, 15-20 day delivery, 60+ countries.