Hongkonger 🇭🇰 / Taiwanese Son-in-law Father of Twins Good Listener 🌏 Hongkong | Taipei | Perth 💼 Barcode & RadioFrequencyIDentification 🧑🏻‍💻 Gerontechnology LinkedIn: Pierre To http://linkedin.com/in/pierre-to-50199b54 YouTube: CareTechSystem https://youtube.com/user/CareTechSystem