... Hours 5.Rechargeable lithium battery Description:Bird Shaped TF Card Mp3 Player With Plastic Box For 1GB,2GB,4GB,8GB1.Support ... MP3 format2.Support 256/512MB/1GB/2GB/4GB/8GB TF Card/Micro sd card 3.Working period ... / Mac/ Linux7.Available color: Black,Blue,Silver,Red,Yellow Bird MP3 Player