Blink Outdoor 4 (4th Gen), Wireless HD, Smart Security, 3 Camera SystemCondition:* Slightly Used Surplus Stock, In OEM Packaging.* Some Parts Are Missing: (Sync Module, USB Cable, Power Adapter)*As Pictured.Additional Notes:* Wire-Free Smart Security Cameras That Helps You Protect Your Home Inside And Out From Your Smartphone* Works With Alexa* Camera Resolution 1080p HD Live View, Infrared Night Vision, And Crisp Two-Way Audio* Wireless Network: 2.4 GHz 802.11 b/g/n* Camera Dimensions: 70mm x 70mm x 41mm* AA Bateries IcludedBlinkB0B1N5FK48