Internet of things Wi-Fi controlled clock with fully automatic time set-up via NTP server. Remote control via HTTP for RGB backlight and 12/24H mode settings. Simple three-button operation: 12/24H mode, Manual time synchronization on demand, RGB On/Off. RGB backlight for each tube and automatic time correction every 6 hours (time server: time.nist.gov). Automatic time set up according to your time zone and DST correction.