Main Features: ?? This product uses streamline design， elegant， comfortable， and with telescope function?? 15 LEDs light source， high brightness， long life， up to 50，000 hours?? Alarm is about up to 90DB?? Power Source: Dynamo， battery?? Built-in 3.7V / 500mAh lithium battery， can be recharged， can also use 4 x AAA battery ( not included )?? This product is particularly suitable for home-used， outdoor camping， camping， outdoor equipment， automotive， emergency supplies， and other environments?? Battery compartment: 4 x 1.5V AAA battery?? Adjustable brightness: High / low / offWith AM / FM radio:?? FM: 87.5 - 108MHZ?? AM: 520 - 1710KHZ Powered source: DC Material: ABS Input Voltage: 5V Battery: 4 x AAA Battery Numbers of LED: 15 LEDs Light Color: White Suitable for: Holiday Decoration，Home use，Office Package weight: 0.619 kg Product size (L x W x H): 15.50 x 10.50 x 10.50 cm / 6.10 x 4.13 x 4.13 inches Package size (L x W x H): 16.50 x 13.00 x 12.00 cm / 6.50 x 5.12 x 4.72 inches Package Contents: 1 x Dynamo 15 LEDs LED Lantern with AM FM Radio， 1 x USB Cable， 1 x Bilingual User Manual in English and Chinese