xmartO 2-in-1 Plug-in Wireless Security Camera & Smart Doorbell Set, 4PCS 4MP Dual-Lens 8-View PTZ Cameras + 16CH 4K WiFi6 NVR (Built-in 1TB HDD) + 2.4G/5G Dual Band Video Doorbell, No Monthly Fee

xmartO 2-in-1 Plug-in Wireless Security Camera & Smart Doorbell Set, 4PCS 4MP Dual-Lens 8-View PTZ Cameras + 16CH 4K WiFi6 NVR (Built-in 1TB HDD) + 2.4G/5G Dual Band Video Doorbell, No Monthly Fee

• 【All-in-1 Plug-N-Play Complete Bundle】This prepackaged security bundle includes 4 plug-in 2-in-1 dual-lens PTZ cameras, 1 16CH 4K expandable WiFi6 NVR (Built-in 1TB HDD) and 1 dual band smart doorbell, plus all needed accessories. It works quickly out of the box—simply plug the NVR to a screen and the cameras to power for 24/7 monitoring; the wire-free doorbell installs easily with tape (smooth surfaces) or screws, no cable hassle.
• 【2-in-1 Dual-Lens & 8-View Coverage】Each camera integrates a stationary camera and a PTZ tracking camera, monitoring 2 directions simultaneously with 2 pictures. 4 cameras enable 8-view surveillance of different directions at the cost of only 4 cameras. The 16CH expandable NVR supports up to 16 cameras (32 views total) if you need to expand coverage later, adapting to large-area monitoring needs for homes, stores or offices.
• 【WiFi6 Mesh & Long-Range Relay】The 16CH 4K NVR has a built-in WiFi6 mesh network, with professional WiFi6 routers inside—all cameras connect to the NVR’s self-built WiFi, causing no load to your home network and working even without Internet. For far cameras with weak signals, they use closer cameras as WiFi repeaters to boost range; on open ground, cameras can be installed up to 1300ft (400m) from the NVR, ensuring reliable connection even with obstacles.
• 【PTZ Auto-Tracking & Smart Vision & Alerts】Cameras support PTZ control (horizontal/vertical movement) and AI auto-tracking, following people, animals or vehicles to record activities. They have integrated IR and floodlights for flexible night vision (IR for black-and-white, floodlights for color, auto mode available). The doorbell features 4MP HD video (twice 1080p), IR night vision, thermal true detection, siren alarm and real-time App alerts.
• 【No Monthly Fee & Flexible View/Use】There are no hidden subscription fees—the NVR’s 1TB HDD stores surveillance footage for an extended period, with cloud storage available as an optional add-on. The doorbell saves video footage via an SD card (not included) or the bundle’s NVR, works independently or in tandem with the NVR, and comes with a chime for instant visitor alerts. Simply scan a QR code to add the NVR to the XMARTO App for convenient remote viewing.