JALL 16" Large Digital Wall Clock with RGB Colors for Classroom, Wall

The JALL 16-Inch Large Digital Wall Clock provides a wide, highly legible screen designed for large spaces such as classrooms, gyms, garages, offices, and living rooms. Measuring 15.35 inches wide by 5.11 inches high, the display allows seniors and anyone viewing from far away or sharp angles to read the time easily. Beyond the hours and minutes, the LED layout displays the day of the week, the calendar date, and real-time indoor temperature in either Celsius or Fahrenheit.

Visual customization is a standout element of this clock. It features eight distinct RGB color modes alongside a soft warm nightlight. For lighting control, the unit incorporates an automatic dimming sensor that adjusts to ambient light, paired with a five-step manual dimmer to keep the screen crisp and glare-free at all hours. Setting the clock is simplified through Bluetooth synchronization, which quickly sets the exact time, while Auto DST manages daylight saving shifts on its own.

Functionality extends to scheduling and activity tracking. The clock includes dual alarms that can be configured for daily, weekday-only, or weekend schedules. It also houses versatile countdown and count-up timers that reach up to 99 minutes and 99 seconds, making it handy for cooking intervals, study sessions, or workout routines.

When planning placement, note that this device is not battery operated and requires a continuous wired connection using the included 5V/2A power adapter and 11.5-foot cable. The internal battery only serves as a memory backup to keep internal settings intact during a brief power outage. Additionally, the Bluetooth feature cannot be used for media or audio, functioning solely for quick time calibration.

Verdict: The JALL 16-Inch Digital Wall Clock is a solid choice for teachers, gym owners, and homeowners wanting a clear, multi-functional wall display with colorful ambient lighting. If you have an accessible outlet within 11.5 feet, it provides easy readability and low-maintenance timekeeping.

• Screen Size: 16 inches
• Dimensions: 15.35 inches W x 5.11 inches H
• Color Modes: 8 RGB modes plus warm nightlight
• Brightness Control: Auto-dimming sensor and 5-step manual dimmer
• Timer Range: Up to 99:99 minutes (count-up and countdown)
• Power Supply: 5V/2A power adapter with 11.5-foot cord (plug-in required)
• Backup Power: Internal memory battery

A great fit if you:

• Need to read the time, date, and temperature from far away or across a large room.
• Want customizable RGB colors and adjustable brightness that dims automatically in the dark.
• Rely on timers and separate alarms for fitness tracking, classroom tasks, or study routines.
• Prefer hands-off daylight saving adjustments and quick Bluetooth time calibration.

Consider something else if you:

• Require a cordless, purely battery-operated clock for locations without a nearby outlet.
• Expect Bluetooth connectivity to play music or broadcast audio.

Can this clock run solely on battery power?
No, it is not battery operated and must remain plugged in with the included 5V/2A power adapter. The internal memory battery only keeps your time accurate during brief power outages.

What can I use the Bluetooth connection for?
The Bluetooth function is designed exclusively for quickly syncing and setting the accurate time.

How long is the included power cord?
The clock comes with an 11.5-foot cable cord along with its 5V/2A power adapter.

Can I change the temperature units?
Yes, you can easily toggle the temperature display between Celsius and Fahrenheit.