Lasts about 10-15 seconds. If the error is greater than 5 minutes, it can be adjusted.
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4 Inch Twin Bell Loud Alarm Clock Metal Frame 3D Dial with Backlight Battery Operate Desk Table Alarm Clock For Home and Office
Aliexpress UK
About this item[Full Metal Solid Structure] This Retro Twin Bell Alarm Clock is made with all metal premium solid structure, wtih silkscreen glass cover and aluminium dial, featuring premium taste and retro traditional design which is unlike other alarm clocks found in common market.[Extra Loud Alarm] Twin bell alarm systm featuring extra loud alarm sound, which is perfect for people who are heavy sleeps, mild loss hearing even deaf. Without a snooze button which made it a good wake up clock for people who has trouble waking up.[Noiseless and Quiet] Our Retro Twin Bell Alarm Clock using premium quality smooth sweep movement, featuring silent sweep second-hand, absolutely silent, without any annoying ticking, which provides quiet sleeping and working environm.
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Night Light Twin Bell Alarm Clocks Metal Frame Battery Operate Loud Desk Table Alarm Clock for Bedrooms Bedside
Aliexpress UK
About this item【Large Numbers & Noiseless】 Our twin bell alarm clock with large stereoscopic displaying numbers instead of printed cardboard make the time watching easily. Classic alarm clock 4 inch with perfect accuracy, no tick, the creeping second hand provides quiet sleeping and working environment.【SUPER LOUD ALARM SOUND】The two bells provide a tight and loud enough sound to wake you up in the morning. No snooze button, good wake up clock for people who has trouble waking up.【EASY TO OPERATE】Compare to some kind of modern digital alarm clocks, our alarm clocks just have four buttons: Two dials to set clock and alarm, one alarm switch to turn on/off alarm and the NIGHTLIGHT button for time watching in dark.【GOOD GIFTS CHOICE】Our loud .
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4 Inch Twin Bell Loud Alarm Clock Metal Frame 3D Dial with Backlight Battery Operate Desk Table Alarm Clock For Home and Office
Aliexpress UK
The double bell design is a nod to classic alarm clocks and ensures a loud, crisp alarm sound that can easily rouse even the heaviest sleepers. With no snooze button, the alarm continues for 45 minutes unless actively switched off, making it an ideal wakeup call for those who find it hard to get out of bed.
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Desktop Alarm Clock Vintage Retro Classic Silent Mini Portable Table Alarm Clock Loud Ringing Bell for Bedroom Study Room
Aliexpress UK
【Super Loud Alarm Clocks for Heavy Sleepers】Designed for heavy sleepers, this battery-operated alarm clock features a small metal hammer that rapidly strikes the metal bells, producing a sharp, clear, and loud sound to instantly wake even the deepest sleeper. Without a snooze button to tempt you back to sleep, it ensures you start your day on time.【Vintage Design】Exuding a charming retro appeal, this clock features a timeless twin bell design that is sure to impress. Its carefully crafted exterior, finished in elegant silver with a brushed texture, enhances its decorative allure. Whether placed in a bedroom or on a desk, this clock brings a touch of vintage sophistication to any space.【Silent Non-Ticking】The analogue alarm clock operates silently.
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Super Loud Vibrating RGB Digital Alarm Clock Mood Light Bed Vibrator Snooze 2 Alarms USB Powered Table Clock for Heavy Sleeper
Aliexpress UK
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Loud Alarm Clock for Heavy Sleepers Adults Retro 4 Inch Silent Quartz with Backlight Twin Bell Analog Kids Alarm Clocks
Aliexpress UK
The classic twin bell alarm clock features an extra loud ringing sound and no snooze button. It’s a perfect alarm clock for people who have trouble waking up or mild hearing loss. 1 x Alarm Clock. Weight: approx.200g.
eBay
4 Inch Twin Bell Loud Alarm Clock Metal Frame 3D Dial with Backlight Battery Operate Desk Table Alarm Clock For Home and Office
Aliexpress UK
1X(Loudest Alarm - For deep sleepers, kids, the elderly, and hearing impaired. So loud it is obnoxious. Easy to set - Dual Alarms: Setup 2 different Alarms Eg. 1 x Digital Alarm Clock).
eBay
367A Loud Alarm Clock with Bed Shaker Vibrating Alarm Clock LED Digital Display
Aliexpress UK