[Features] The Electronic Solder DIY Kits are used to installed to a FM radio (87-108MHz). You will own a FM Stereo which has excellent sound quality, stable performance and cool appearance when you finish the project. This device supports two power supply modes. It comes with a USB power cable and battery case, whether you're working in a studio or traveling, you can easily switch between the two power supply modes to suit your needs. WITH A HEADPHONE JACK: Whether you're tuning into your favorite talk show, catching up on the news, or simply enjoying some music, the headphone jack provides a personal listening experience that is perfect for any situation. [product information] product name:Radio Assembly Kit styleRadio Bulk with Case Material:aluminum alloy size:107*70*23mm Packing list (you can get after purchasing one item): Radio Assembly Kit*1 Please understand: 1.Due to the long shipping time, the item may be damaged during the shipping process, if the item is damaged, please leave us a message through the official website immediately before posting comments, and I will solve the problem for you. 2.Due to manual measurement, the size may have an error of 1-3cm. 3.Colors may vary from monitor to monitor.