Wifi button camera, nano earphone Used once A small camera that works remotely via Wi-Fi, designed for reading papers. You can adjust the focus according to the distance of the paper from the camera. Works on Wi-Fi (remotely) from anywhere via phone, whether (iPhone) or (Android) via the app. Camera angle: 90 degrees Works on video resolution (you can choose any resolution you want) (1080p) (2k) (4k) Battery size (1000) mAh, you can use it for 4/5 hours without continuous electricity. Price: 700