U Shape Mini Speaker 1.TF card player, Line-in, FM Radio function. 2.Built-in Rechargable Battery Applicable to MP3, MP4, Laptop, PC, MD, Mobile phone, etc…all kinds of digital audio players with 3.5mm jack Fashion Cloumn Speaker Attribute: Material:ABSDimensions:85*80*35mmLi-ion batter 3.7V630mAOut put: 2.5wCharging voltage: DC 5VSustainable playback time: 5-8 hours, Charging time: 1.5-3 hours, ...