Thank you for viewing! This is a 2K ultra-high-definition wireless smart doorbell from the Posinu brand. No wiring is required, making it easy to install high-performance security measures even in rental properties. 【Main Features】 • 2K Ultra-High Definition Picture Quality & 150-Degree Ultra-Wide Angle Adopts 2K resolution of 2560 x 1440 pixels and an F2.0 large-aperture lens. The 150-degree wide-angle lens allows you to clearly see visitors' faces, feet, and even the labels on their packages. • Large-Capacity Battery Lasting 8 Months Equipped with a 5000mAh battery, it can be used for up to approximately 8 months on a single charge. Charging is done with the included Type-C cable, eliminating the need for battery replacement and associated costs. • Easy Installation Without Construction No wiring or specialized knowledge is required. It can also be installed without screws, so you can install it with peace of mind in rental properties where you don't want to damage the walls. • Real-Time Communication with Smartphone You will receive notifications on your smartphone even when you are away from home, and you can have real-time conversations with visitors via video calls. With the automatic recording function, you can check the recordings when you are away from home on the cloud at any time. • Advanced Human Motion Sensor & Night Vision The PIR human motion sensor accurately detects human movement, reducing false notifications. The night vision function is also excellent, displaying clearly up to 10 meters away even in complete darkness. 【Product Specifications】 • Brand: Posinu • Model: M52 • Resolution: 2K (2560 x 1440) • Battery: 5000mAh (Type-C charging) • Viewing Angle: 150 degrees • Waterproof Performance: Outdoor compatible 【Product Condition】 Brand new, unused