1. Fully automatic 3D face recognition + active intercom visual cat eye APP model, semiconductor fingerprint head 2. High-performance motherboard chip, stay-and-shoot, 4200 mAh lithium battery 3. Infrared binocular 3D face recognition, C-level lock cylinder, anti-technical violent unlocking, anti-small black box unlocking 4. 4.5-inch high-definition IPS screen + 1 million pixel lens, active intercom, real-time monitoring and remote unlocking 5. Outdoor USB emergency power supply + mechanical key, indoor quick-open escape function, double safety protection 6. Unlocking methods: fingerprint, password, key, card, WeChat, APP remote, 3D face recognition 7. Material: Aluminum alloy fingerprint-free powder coating + IML panel, size: 430*75*35mm