【4MP Ultra HD Resolution and Clear Night Vision】WUUK indoor security camera has 100% higher resolution than 1080p (2 MP). With built-in infrared night vision, you can monitor accurately at night, allowing you to see every detail clearly. | 【Motion Detection and Automatic Tracking】WUUK WiFi surveillance camera has motion detection and tracking function for people and pets; when motion is detected, the 360-degree security camera will automatically track and follow moving objects; and record moving objects. | 【2-Way Audio】The security camera has a built-in speaker and microphone so you can communicate with your children or pets in front of the camera. Your little ones will never be alone. | 【Works with Alexa, Easy to Use】The web camera is compatible with 2.4GHz wifi networks (5GHz is not supported), and is compatible with Alexa, allowing Alexa to display your baby's room, or any other room where you have a WUUK baby monitor. | 【Flexible Storage & Worry-Free Customer Service】Supports local MicroSD card up to 256GB (MicroSD card not included) and WUUK cloud storage (optional, includes 30-day trial). WUUK offers you one year warranty/24 hours customer service.