Metal 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 This product is made of high quality and environmentally friendly materials and is rigorously tested to ensure that it is sturdy and durable and remains as good as new for long term use. Our commitment is to provide durability and reliability that exceeds your expectations. We are well aware of the needs and expectations of users, so we have incorporated many humanized details into our product design. Meanwhile, this product has passed the relevant safety tests to ensure safety in the process of use so that you and your family can use it with more peace of mind, to provide you with a more comfortable and convenient use experience. We are committed to the cause of environmental protection, this product is made of environmentally friendly materials, focusing on energy saving and consumption reduction in the production process. Through the relevant design, jointly guard the earth's homes, so that green life within reach. We focus on user experience, product design is intuitive and easy to understand, even for the first time you can quickly get started, to bring you a better experience. We provide a full range of customer service, you encounter any problems in the process of use, we will be the first time for you to solve, to ensure that your shopping experience is pleasant and worry-free. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.