LOUD ALARM CLOCK WITH 3 WAKUP MODES & 3-LEVEL VIBRATION INTENSITY: This Upgraded Loud Alarm Clock for heavy sleepers features 3 alarm modes (buzzer, bed shaker, or both buzzer and bed shaker), it boasts 3-level adjustable vibrations (HIGH-MIDDLE-LOW) and a max volume of 116dB (5 levels). Ideal for deep sleepers, the deaf, hearing impaired, or seniors, it ensures you wake up with a loud buzzer and strong vibrations. | DUAL ALARM CLOCK FOR BEDROOMS WITH WEEKDAY/WEEKEND MODE: The alarm clock for bedrooms heavy sleepers has 3-period ranges: MON-SUN, MON-FRI, and SAT-SUN. Set two alarms separately for different schedules or on the same day. Ideal for those with varying weekend and weekday routines, or for couples and roommates-no need for two clocks. Convenient visible buttons ensure easy time and alarm setting. | VIBRATING ALARM CLOCK WITH 5 LEVEL DIMMER & 5 LEVEL VOLUME: The bed shaker alarm clock offers 5 levels adjustable brightness with a Lower Dimmer mode for easy reading-brighter during the day and dimmer at night. At the lowest brightness, a "LOW DIMMER" icon appears for 20 seconds before disappearing, ensuring no disturbing light while sleeping. The alarm volume is also adjustable to 5 levels, providing louder settings for heavy sleepers and quieter ones for light sleepers. | BED SHAKER ALARM CLOCK WITH USB CHARGER & BATTERY BACKUP: This super loud alarm clock for heavy sleepers adults features a USB output port, serving as a bedside charging station. Simply connect your device before bed, and it will be fully charged by morning. The clock is electric-powered and requires AC power to operate but includes a memory function with 2 AAA batteries (not included). During a power outage, the alarm will ring on time. | HEAVY SLEEPERS ALARM CLOCK WITH SNOOZE & 12/24H & DST: This bedroom alarm clock for kids and families has a 7.5'' large display with bold font, allowing you to see the time and day from any corner of the room. The big snooze button lets you enjoy an extra 9 minutes of sleep, and easily turn off the alarm for 24 hours with a short press or permanently with a long press. It offers adjustable 12H/24H formats and a DST function.