Broadband radio This portable radio has two channels, AM and FM. It supports FM: 87~108MHz and AM: 520~1710KHz. You can adjust the channel by rotating the knob in the middle of the mini radio with both hands. You can hear weather warnings and important announcements clearly on the FM channel. The telescopic antenna can be extended to 30 cm for better signal reception. 3 Charging Methods You don’t have to worry about the solar weather radio losing power, it can be charged via USB Type-C cable, solar panel or hand crank. The 2500mAh battery takes about 2.5 hours to charge, can be used for about 8 hours at maximum volume, and can be used for about 22 hours with a flashlight. POWERFUL EMERGENCY RADIO When you're in trouble, long press the flashlight button to activate SOS mode. The generator radio will sound a loud siren and the flashlight will flash to ensure you are heard and seen. The survival radio can be used as an emergency power source to charge the mobile phone when it is out of power. The LED flashlight portable radio is equipped with a 1W LED flashlight, which can be turned on by a short press of the flashlight button, helping you illuminate the darkness and have a clear vision. A compass is included in the package to help you find your direction. LIGHTWEIGHT AND PORTABLE This mini portable pocket radio is designed to be lightweight so you can take it with you when out and about, camping, traveling, or hiking, providing you with music, sports, talk shows, and news. The UOHHBOE hand crank radio is ideal for mountaineers, hikers and outdoor sports enthusiasts as an essential survival kit.