selling point:

　　1).TF card speaker: can read TF and mobile card

　　2).3.5mm audio plug: plug and play with any audio devices with 3.5mm audio jack

　　3).With wirst strap: can be hanged on bag and wrist as a travel speaker

　　4).Rechargeable Li-ion Battery: can be recharged by USB power

　　Specification:

　　1).Rated Power:2W

　　2).Frequency Response:100HZ-20KHZ

　　3).S/N Ratio:≥80db

　　4).Power Supply:Li-ion, battery

　　5).Output:4.2V/250MA

　　6).Speaker Drivers:2W/4Ω

　　Available color: Blue/Red/Silver/Black

　　Accessories:Audio cable, USB Cable