Metal Vintage Alarm Clock Extra Loud Manual Wind Up Analog Retro BacklightMetal Vintage Alarm Clock Extra Loud Manual Wind Up Analog Retro Backlight Features: The mechanical alarm clock needs to be up once every 24 hours, and the clockwork needs to be up once every time the alarm clock is alarmed. All mechanical are non-silent, with a nostalgic ticking as the alarm goes . There will be a small error in the mechanical alarm clock, which is a normal phenomenon. If the error is greater than 5 minutes, it can be adjusted. The mechanical alarm clock has a crisp sound and a loud ringtone. Lasts about 10-15 seconds. The on the back of the mechanical alarm clock has the functions of time adjustment and alarm clock adjustment, and the operation is simple. If you have any questions, you can consult the seller at any time. Product Description: 1*Alarm clock Made of practical materials, beautiful and durable, enough to meet your daily use needs! This product is non-toxic and pollution-free, low-carbon and environmentally friendly, so you can use it with confidence. Made of practical materials, beautiful and durable, enough to meet your daily use needs! This product is non-toxic and pollution-free, low-carbon and environmentally friendly, so you can use it with confidence.