Everlotus Features: - USB, Micro SD, Aux Input - FM Radio - Bluetooth - LED Display - USB Charge - Answer Phone Call - Large Battery Input Power: DC5V Output Power: 5W 4000mah built-in rechargeable battery Unit Size: H 50mm x W 200mm x L 200mm What's in the box 1 x Everlotus (MP-0321) Bluetooth Speaker - Black