Full-duplex video intercom doorbell (one-touch conversation, like making a phone call), video viewing/two-way intercom/support recording/support taking pictures/support playback. Doorbell with Two-way Intercom, connect the intercom and you can have a two-way conversation without waiting for one party to finish speaking before the other party can speak. The external antenna signal is stronger and the receiving distance is longer. Perfect for reassuring yourself a little and knowing who is at the door when you don't have a peephole! Easy to use: No need to download the application installation, no network required, no monthly fee, 2.4G Bluetooth wireless interconnection, one-click pairing, fast and simple, ultra-wide angle view of the doorbell, ultra-wide field of vision, clear visibility from top to bottom, from left to right. Multifunctional doorbell:Recording: Insert the memory card and press the doorbell to automatically record. Snapshot: Press the doorbell without inserting the card to take a photo for evidence collection. Home use environment: The display screen is placed in the living room, powered by electricity, and the door control is installed at outside for charging Supports 14 languages in multiple countries, including Chinese, English, French, German, Spanish, Arabic, Italian, Portuguese, Russian, Turkish, Korean, Japanese, Thai, Vietnamese, etc.