3S Smart key - 4G key

The smart key features both voice prompts and light indicators, offering real-time notifications of various key statuses. The key communicates via infrared wireless data transmission, with AES-256 encryption ensuring high-level data security. Powered by a single-point contact, the smart key works in conjunction with the electronic lock cylinder to detect both lock and unlock states. Locking and unlocking actions must be performed with the key, and manual locking without the key is not permitted. 4G connectivity, enabling direct task assignment via the Internet of Things (IoT) and remote authorization for locking and unlocking.