Smart Wireless Remote Video Doorbell: Open the door no matter where you are with 1080p HD daytime and infrared nighttime video and two-way audio. 65° viewing angle, details are right in front of the door, reliable and practical. WIFI connection: Portable doorbell, no wires required, enabling two-way intercom between the doorbell and mobile phone. Real-time mobile phone, supports two-way calls, photos, recordings, taking care of family members, and production (the voice-changing function has been upgraded, so you can easily cope with strangers visiting when you are alone at home.) APP control: The doorbell can be controlled through APP, automatic working mode, smart and portable. Light in size and weight, easy to install and disassemble. (No need to punch holes, supports 3M self-adhesive stickers, also supports punch-hole installation, super long standby, no plug-ins required) Two-way intercom: WIFI connection, remote doorbell wireless, realizing two-way intercom between the doorbell and mobile phone. A real-time mobile phone that supports two-way calls, photos, and recordings, caring for your family, and giving you long-lasting peace of mind: no disassembly and cycle charging, built-in 800MAH lithium-ion large-capacity battery, normal use for more than 6 months, charging time is 1.5 hours.