√ 【Smallest USB Wi-Fi Camera】USB21 is the smallest Wi-Fi USB camera. Support remote connection (2.4G Wi-Fi connection).Multiple uses for home, shop, office. √ 【Long working hours 】supports long working hours- this camera needs to plug in to a power source to work. supports multiple power source and you can achieve long hour working. √ 【USB adjustable recording angle】Camera has a metal hose, you can bent any angle for recording. √ 【Latest Adavance AI Technology】AI humanoid recogntion-only record when human movement is detected (avoid false alarm caused by wind, grass or animal). Customize arming time/area: you can choose specific area and time for arming. √ 【Cloud/TF card Storage 】Supports TF card and cloud storage (Ali cloud Storage needs be bought seprately) TF card supports 8-128G C10 TF card (128G can support about one month of recording) Product description New and Improved version of Wi-Fi USB Camera Smallest USB camera with long working hours: -You can plug it into any power source ready to record (universal USB power port supports power bank, car charger, power adapter) -USB metal hose for adjustable angle -Two recording modes: TF card recording and remote record (real-time video can be watched online)Supports 8-128G TF card. Feature: -Motion Detection -Ali cloud storage -AI humanoid Recognition -Customize Arming time/area Package: -USB Camera -User Manual Note: 1、This camera does not have internal battery, so you have to plug in a power source to use it. 2、This camera only supports 2.4G WiFi connection.