Stalwart 75-XQR39 is a multifunction lantern with AM/FM radio, flashlight, and emergency light. It can be powered by solar, dynamo cranking, or batteries. The solar panel charges the built-in rechargeable batteries, which can also be charged via USB. The dynamo cranking charges the batteries quickly, with 2 minutes of cranking providing enough power for 19-20 minutes of 5 LED flashlight use. The radio has a telescopic antenna for optimal reception. The flashlight has 5 LEDs and can be used as an emergency light. The siren function can be activated with a switch.