[FM Radio Sleep Timer] FM radio digital clock with sleep timer (10-120 minutes), frequency range: 87.5-108MHz.Loud and clear speaker with adjustable volume to help you fall asleep easily. The headphone jack also comes in handy, so you won't disturb others nearby. Dual USB charger ports and super easy setupDual USB charging ports for charging phones, tablets and other 5v electronic devices. The large dial makes setting the time/alarm clock easier. You can quickly rotate it forward or backward. Dual alarm clock and 6 wake-up soundsDual alarm clock with 6 natural sounds to choose from. Choose your favourite sound for every good moment of your life. [5 level adjustable brightness mini alarm clock] 3.2' portable LCD screen with 5 level dimmable display provides you with comfortable brightness during the day and night. Neither too bright to illuminate the whole room nor too dark to be seen. Socket Powered and True Battery PoweredSocket powered, but you can use 3*AAA batteries (not included) for backup and the clock will keep working whenever the power goes out or when you travel