Energy conservation design, with 5000mAh battery, wake up 10 times one day, it can work for 180days. Support max 128G SD card, or use cloud storage, you can check video recording playback in your APP anytime. This doorbell camera will work in 24 hours, once it detected something moving suspiciously, it will take video and push notification to your phone automatically. The IR LED on the outdoor doorbell will light on automatically so that you can see clearly who is outside the door at night, Make sure your family is safe. You can tell the courier where to put the package, or warn strangers, theft, voyeurs, etc. to stay away from your house. No need to open the door or communicate face-to-face, the smart doorbell camera with two-way intercom function can save your family from unnecessary danger or accident through the APP., Manufacturer: QAXRZCUCD