10 Best Loud Alarm Clocks 2024 in the US

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Sunrise Simulation: Gradually increases brightness from 10% to 100% before alarm time to gently wake you up with natural light.

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Dual Alarms with Snooze: Allows setting of two separate wake-up times with a snooze option for an extra 9 minutes of sleep, up to 5 times.

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7 Color Ambient Light: Offers a choice of 7 colors for personal preference or mood, enhancing the atmosphere of your bedroom.

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Adjustable Brightness: Features 3 levels of LED display brightness and 20 levels of lighting brightness for comfortable viewing.

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FM Radio: Includes an FM radio function that can scan stations between 76 - 108 MHz, doubling as an entertainment device.

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Personalized Wake-up/Wind-down: Features simulated sunrise and sunset, 20 brightness settings, and a selection of 5 natural wake-up sounds for a personalized experience.

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Smart Features: Equipped with FM radio, tap snooze function, a bedside lamp, and an automatic dimmable display for convenience.

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Mood and Energy Enhancement: Designed to provide an easy and energetic wake-up, improving mood in the morning.

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Clinically Proven: Recommended by physicians and pharmacists to help establish a healthy sleep and wake routine.

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Money Back Guarantee: Comes with a 90-day no-hassle money-back guarantee from Philips.

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Extra Loud Alarm: 113db alarm with adjustable volume, designed for heavy sleepers and the hearing impaired.

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Adjustable Alarm & Snooze: Customizable alarm duration (1-59 minutes) and snooze intervals (1-30 minutes) for personalized wake-up settings.

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Vibrating Bed Shaker: Powerful bed shaker to ensure waking up on time, with selectable modes including vibration, buzz, or a combination.

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Ideal for Students: Loud alarm and bed shaker designed to wake kids and teens, perfect for ensuring punctuality for school and college.

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Sonic Alert Brand: Trusted brand with over 40 years of experience, catering to the needs of the deaf, hard to wake, and elderly communities.

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Large Display: 2-inch jumbo LED digits for easy visibility.

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Brightness Dimmer: Adjustable display brightness for comfort.

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Adjustable Alarm Sound: Set alarm sound from 30-90 DP as preferred.

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USB Charging Port: Charge devices without wall plug.

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Memorized Battery Backup: Stores settings during power outages.

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Large LED Digits: 2.15 inches jumbo digits for easy visibility.

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RGB Dynamic Display: 8 color patterns with 5-level dimmable brightness.

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Extra Loud Alarm: Up to 105db with 5 adjustable volume levels.

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USB Charging Port: Charge devices with a single USB port.

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Battery Backup: Stores settings during power outages with AAA batteries.

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Large Display: 2-inch digits for easy readability, ideal for seniors.

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Adjustable Volume: 5 volume settings from 60 Db to 103 Db for all sleepers.

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Brightness Control: 5 brightness levels for optimal visibility and comfort.

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Battery Backup: Ensures alarm functions during power outages with 2 AAA batteries.

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USB Charger: Conveniently charge devices on your nightstand while you sleep.

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Extra Loud Alarm: Alarm volume up to 105dB with 5 adjustable levels, ideal for heavy sleepers and adults.

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Dynamic RGB Display: Features 15 RGB colors with 4 brightness levels, appealing to teenagers.

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Colorful Night Light: Offers 7 color options to create a vibrant ambiance in the bedroom, suitable for boys and girls.

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Large Display Numbers: 6.3" LED display with 2.1" tall numbers for easy viewing from a distance.

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Comprehensive Features: Includes snooze function, 12/24 hour format, Daylight Saving Time, and dual USB ports for device charging.

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Strong Bed Shaker: Comes with a 71” wired shaker for a strong vibration to wake heavy sleepers without disturbing others.

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Loud Buzzer with Adjustable Volume: Features a loud buzzer with 4-level adjustable volume for a customizable wake-up experience.

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Dual Alarm with Snooze: Allows setting of two separate alarms with a big snooze button for an extra 9 minutes of sleep.

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Large Display with Dimmer: 7.5’’ LED display with 5 levels of brightness for clear visibility and comfort.

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Battery Backup: Includes a battery backup to maintain time and alarm settings during power outages.

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Powerful Bed Shaker: 3-level adjustable shaker ideal for heavy sleepers and those with hearing impairments, with optional vibration and sound alarm combination.

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Intuitive Setup: Easy-to-use design with clearly labeled buttons and separate 'ears' for setting time and alarm, ensuring straightforward configuration.

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Customizable Alarm: Dial-controlled brightness adjustable from 0 to 100%, dual alarms for different schedules, and a snooze function for an extra 9 minutes of sleep.

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USB Charging Port: Convenient USB port for charging mobile devices overnight, ensuring your electronics are ready to use when you wake up.

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Battery Backup: Supports 2 AAA batteries for backup during power outages, preserving time settings and alarm functionality (note: vibration and USB charging will not work on battery power).

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Extremely Loud Alarm: Up to 115db with adjustable volume and tone.

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Six Unique Wake Sounds: Includes Rooster, Bugle, and more.

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Dual Alarms: Set two separate alarms for different schedules.

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Custom Snooze Function: Snooze time adjustable from 1-59 minutes.

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3-Level Dimmer Control: Adjustable brightness for comfort.