Aqara NFC Card offers convenient and secure access to your Aqara Smart Locks U100 and U50. Experience with effortless unlocking at home. –Convenient NFC Card Unlocking: Instantly unlock your Smart Lock U100 or U50 by simply tapping the card. Enjoy keyless entry that integrates with Matter, Apple HomeKit, Apple Home Key, Alexa, Google, and IFTTT. –Individual Pairing: Each NFC card can be uniquely paired with one Smart Lock U100 or U50. This gives you control tailored to your household or business. –Enhanced Security: Equipped with an EAL5+ financial-grade chip, the NFC card securely stores key information. It safeguards against unauthorized replication so your lock remains secure. –User-friendly Operation: Easily program the NFC card to grant access to family members, friends, employees, or short-term rental clients. The NFC Card adds convenience, security, and simplicity to your smart lock system!