◆◆◆Package Included◆◆◆1 x U21 USB Camera1 x User Manual◆◆◆Relevant Parameter◆◆◆APP name: V380 ProVideo format: AVIAP resoultion transmission: HD/SDIP resoultion transmission: HD/SDVideo frequency: 25fpsStorage: C10, MicroSD Card, 8G~128G.Charging voltage:DC-5V/1A~2AInterface type: USBSpeical feature: Cloud Storage & AI Human Detection(Fee charging service) Supported frequency band of wifi: 2.4 G.◆◆◆Little Tips◆◆◆Rettru U21 is a web camera.It has the following two working modes.★AP Mode★: Camera is directly connected to mobile phone or PC, and real-time monitoring can be realized on the mobile APP or PC. It is only suitable for osscations where the distance between camera and mobile phone or PC is relatively close (within 5 meters).★IP Mode★: Camera is connected to a mobile phone or PC through 2.4G Wifi network, which is suitable for long-distance occasions.Note:1.U21 supports V380 Pro only.2.You need to use your mobile phone to connect to its hotspot signal and set an account and password for it before working in any mode.3.If you become one of our customers, you will enjoy an 18-month quality guarantee.Contact information can be found in the packaging