Will not work without it. The new version has a USB port for local storage.
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⚙️ How the solar part really works. Typical solar output is modest (around0.8W–5W range ). You get decent sunlight.
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See and speak from the Blink app — Experience 1080p HD live view, infrared night vision, and crisp two-way audio. Style Outdoor 4. Works with Alexa — Connect to an Alexa-enabled device to engage live view, arm and disarm your system, and more using your voice.
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The Sync Module 2 connects up to 10 of any Blink Indoor, Blink Outdoor, XT2, XT, Blink Video Doorbell and Blink Mini devices (not required for Blink Mini). Supports local video storage for up to 10 Blink Outdoor, Blink Indoor, Blink Video Doorbell and Blink Mini devices.
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Blink Sync Module 2 system Hub. Includes Sync Module 2, one USB cable, and one power adapter.
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1 Sync Module 2.
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This package includes a complete Blink security camera system with both indoor and outdoor units. It comes with 4 outdoor cameras and 5 indoor cameras. The outdoor cameras include: • One camera with a dedicated solar panel • Three additional outdoor battery-powered cameras • Two extra solar panels for extended outdoor use Additionally, the set includes two 8GB microSD cards for local storage. The three outdoor cameras are fully ready to operate and do not require any additional parts. Simply connect the system to Wi-Fi, and it will be ready to use. And one alcatel Mi-Fi router without battery, but still working 
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Affordable peace of mind starts here. See what’s happening with HD live view and infrared night vision. •See and speak from the Blink app — Experience 1080p HD live view, infrared night vision, and crisp two-way audio.
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