●100% Brand New
●Minature high power amp produce crstal clear sound
●Works with all MP3 plaers including i-pod shuffle,ipod nano and ipod,MP4 Player ,PC and Mobile Phone
●About 10 hours playback from 4 AAA battery
●Operating temperature:0-45℃
●Can be USB power,Can use DC Adapter to input power
●Diametre of the Football:70 mm
●Height of the Speaker:100 mm
●Speaker System: 4Ω 2 W
●Output Power:1W x 2
●Frequency Response:80 Hz - 18 KHz
●weight:about 140g
●Sound:Stereo
●Speaker Jack size:ψ3.5
●S/N Ratio:> 65 dB
●Signal Cable:220 mm STR cord 
●Package contents: 
＊1 × Mini Football Speakers with audio plug
＊1 × USB power cable
＊1 × pc connecting cord