New design protable speaker 1.Unique and portable design 2.Can supply 4-5 ... hours for music play 3.Built-in lithium battery New ... design protable speaker1.Name:2 in 1 TF card speaker2.Item No:PY-215B 3.Speaker system:2 ... ,supply 4-5 hours for music play 3.Accompanying speaker for PC, MP3, MP4, notebook, IPHONE, IPOD.