Accurate, maintenance-free timekeeping Built-in ESP8266 module automatically synchronizes time over WiFi so the clock always shows the correct time without manual adjustment. Keeps date and day of week up to date alongside the time. Clear, customizable display Digital display shows time, date, day of week, and temperature in one view for fast at-a-glance information. Display color and brightness are adjustable; brightness options include high, medium, and low to suit different environments and reduce glare. Flexible time and alarm settings Switch easily between 12-hour and 24-hour display formats to match your preference. Three independent, customizable alarm clocks let you set multiple reminders or wake-up times. Low-voltage, portable power Runs from a standard 5 V DC USB power supply. Average current draw is approximately 250 mA, with up to 500 mA during startup. USB power makes the unit easy to place anywhere with a USB power source (power bank, USB adapter, or computer). DIY assembly with educational value Supplied as a hands-on DIY kit requiring soldering and assembly, ideal for hobbyists, students, and makers. Front-side components are pre-soldered for convenience; only the back-side components require soldering. Detailed instructions are included to guide assembly and testing. Compatibility and performance notes Requires an available WiFi network for automatic time synchronization via the ESP8266 module. Designed for low-power operation and reliable daily use when powered from a stable 5 V USB source. Practical use scenarios Home office clock: Place on a desk to keep accurate time, date, and room temperature visible while working; use alarms for work blocks or breaks. Workshop or classroom project: Use as a soldering and electronics learning kit for hands-on experience with components, wiring, and IoT time synchronization. Portable alarm clock: Power from a USB adapter or power bank while traveling to maintain accurate alarms and local time display. What makes this product stand out Automated WiFi time synchronization removes the need for manual time setting and drift correction. Combined readout of time, date, day, and temperature with adjustable display color and brightness improves usability across different lighting conditions. The kit format provides practical learning value while keeping assembly manageable thanks to pre-soldered front-side components.