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eufy Security, Wireless Add-on Video Doorbell with 2K Resolution, 2-Way Audio, Simple Self-Installation, HomeBase 1, 2, or E Required - Walmart.com
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16-24Volt Transformer, C Wire Power Adapter Compatible with Eufy Video Doorbell, UL Certified 20VAC 500mA Transformer with 16.4 ft Cable Supply Power with Security Chime - Amazon.com
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