... , Portable, suits for sports, such as bike rider, jogger Music box FM function This product is a mini sport speaker, has one speaker in ... Notebook PC, MP3, MP4, Ipnone etc.Build-in stereo FM radio, Build-in 1450mAH Li-ion battery, support long time playUsing ... , when use earphone about 70 hoursCharge Time: 7 hoursUSB charge: USB(5V/1A);AC transform charge: 4 hours(optional)Support TF ...