Mini Portable FM Radio has a very portable design and exquisite workmanship, and the surface adopts imported UV technology. Dimensions detail 4.09 x 2.0 x 0.86 inches. Directly use the number buttons to enter the channel you want, FM: 87.5-108 MHzMultifunctional With this FM 87.5-108MHz / AUX input and TF card music playback/recording radio, you can turn on your favorite station or your favorite music by turning on. FM radio with the best reception any radio station will serve you. The function of automatically turning off the screen during playback greatly extends the use time. Besides, LOCK BUTTON will perfectly avoid your misoperation on crowded subway, bus, etc.MP3 music playback mode supports TF card/Micro SD; if necessary, use a standard 3.5mm audio cable to easily plug into iPod, smartphone, tablet, laptop and other MP3 players or any standard 3.5mm jack audio source. It has a large LED screen display, which looks more elegant and clear.Rechargeable Lithium Ion Battery Rechargeable BL-5C Battery Small Radio with Rechargeable Lithium Battery 1200mAh; A single charge lasts at least 10 hours; The battery can be easily removed and replaced. Go outside and listen to the radio, listen to music while you cook in the morning, jog, gym, camp, hike, bike or beach, whatever you need to do.