Mefarla Portable Am/Fm Mp3 Radio Speaker MP3 Music Player with Micro SD/TF USB Disk Mini Digital Speaker -938 AM Blue FM/AM Radio function, LED Flashlight Can play music,Support Play MP3 Format Music or other media content TF Card,U Disk. Super bass woofer wonderful sound Easy to plug in your iPod, Smartphone, tablet, laptop and other MP3 player or any audio source that uses a standard 3.5 mm jack Rechargeable Li-ion battery 5C 600MAH,continuously work for 2-3 hours in largest volume, 4-6 hours in middle volume, 8-10 hours in low volume Comes with a strap for convenience carrying. good gift for church ,family ,office and school language study