feature: *Brand new and high quality. *Made of high-quality materials, you can buy with confidence. *This alarm clock requires an external power supply, and can also use AAA batteries. *Display time and temperature. *With positive countdown function. *The shells are all black. Specification: *Product name: Digital alarm clock *Size: 16.5*2.5*4.7cm *material: plastic *Color: as shown in the picture Package Contents: 1* digital alarm clock notes: 1. Due to various factors such as monitor brightness and light brightness, the actual color of the item may be slightly different from the image displayed on the website. 2. Manual measurement data may have slight deviations. 【Multi-Function Electronic Clock】This LED alarm clock is designed with multiple functions, including displaying time and temperature, and featuring a positive countdown function. Its design meets various needs. 【Reliable Quality】Made with materials, this alarm clock ensures durability and reliability. You can purchase it with confidence, knowing that it will last. 【Flexible Power Options】This alarm clock can be powered by an external power supply or AAA batteries, giving you the flexibility to choose the power source that suits your convenience. 【Sleek Design】With its all-black shell, this digital alarm clock adds a touch of modernity and elegance to any room decor. It perfectly blends in with any style or color scheme. 【Accurate and Convenient】The LED display provides clear and accurate time and temperature readings. The easy-to-use interface allows for hassle-free operation.