... .supports ipads,iphone , 3.built-in lithium battery wireless portable bluetooth speaker ,mini for mobile/mp3/mp4,aluminum Specification* Power: 3W * ... Time: 3 hours max* Last Time: 2-4hours (via bluetooth to play)* Driver Unit: 56mm, 4 Ohm ,3W*Dimension:(D)65MM*(H ... 4G, iPad, Droid (with latest operating platform) and other bluetooth devices *Inbuilt lithium battery with 3 hours working time*Aluminium ...