The bundle includes 4 eufyCam S3 Pro Add-on Camera + 1 HomeBase™ Professional S1 eufyCam S3 Pro:  Nighttime That's as Bright as Day: Harness the power of a 4K camera combined with MaxColor Vision™ technology. eufyCam S3 Pro captures exceptionally detailed surveillance footage in every frame, offering day-like image clarity even in ultra-low light conditions without the need for a spotlight. Reliable Solar Power System: Experience peace of mind year-round with continuous, reliable security powered by SolarPlus™ 2.0 technology. Choose the built-in panel for streamlined efficiency or add an external panel to expand energy coverage. This system offers versatile mounting options and reliable backup power for continuous security.(not includes backup solar panel). Radar-Powered Detection Alerts Only What Matters: The dual motion detection system, combining radar and passive infrared (PIR), accurately identifies human movement and reduces false alerts by 99%, guaranteeing that alerts are only triggered by major security events in specified areas. Compatible with Apple Home, Alexa, and Google Assistant. (The video footage will be 1080P resolution when using Apple Home.) HomeBase™ Professional S1: Uninterrupted Video Security: Stay secure during power or Internet outages with 4G connectivity and a 24-hour built-in battery for continuous vid Device Compatibility:Compatible with select eufy devices, including eufy POE cameras, eufyCams, eufy battery doorbells, and eufy sensors. Massive Local* Storage: Secure footage with 32 GB built-in storage, expandable up to 16 TB. Enjoy faster response times and complete data privacy with local processing. Advanced Al Upgrades: Add EdgeAICore to unlock advanced Al-powered features for a truly comprehensive security experience.