Features: The am fm radio is the size of a deck of cards but much lighter, making it suitable for jogging. The transistor radio is equipped with 3.5mm headphone port, allowing you to enjoy a private listen experience travel. Power by 500mAh batteries. It can be used for 12-15h at full charge. Have a countdowns function for a deep sleeps. Bring convenience to our lives In order to reduce power consumption, it will be automatically turned down in 10 minutes. Specifications: Component:Metal Radio frequency: 87-108mhz 520khz-1710khz 76-108mhz 522-1710khz 87-108mhz 522-1710khz Battery:500mah Size:Approx.80x57mm/3.15x2.24inch Package Includes: 1 Set AM FM Radio note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.