describe Super Signal ReceptionThe DSP anti-jamming chip is adopted to effectively improve the radio's sensitivity. Retractable antenna Supports ultra-wide signals in the FM (87.5-108 MHz) and AM (522-1620 KHz) frequency bands. The powerful signal reception function allows you to easily listen to music, news, traffic information, food information and other programs in any country/region/in a harsh environment. Stereo Headphone Listening & Clear SpeakersThe small radio with built-in 3W large stereo speakers can easily fill the entire room with deep bass, smooth treble and clear sound. The radio supports a standard 3.5mm headphone jack, allowing you to enjoy music comfortably whether you are alone or in a noisy environment. You don't have to worry about being interrupted or disturbing others (NOTE: Headphones not included). Multifunctional Portable RadioThis battery-powered radio measures only 14.5x8.5x3.5cm and weighs only 275g, compact and portable. The time can be set manually, convenient for you to check the time. The alarm function allows you to better plan your sleep and work. And the alarm clock sound has a classic retro beep, making listening more enjoyable. The sleep timer turns off the radio at the time you set - perfect for listening to the radio at night. 2 Power Supply Modes 1. With DC 5V power supply, you can use a power bank/USB to power the radio. (Even if you are playing outdoors, you don't have to worry about the radio running out of batteries). 2. Powered by 4 AA batteries (not included), the battery-powered radio is suitable for quick start-up and listening in various situations to avoid power outage or (USB cable only) Set Favorite Stations In addition to having a button to search, save, and dial, the small radio also supports manual presetting. You can tune in to several of your favorite radio stations for quick and easy access.