1.beer cap speaker for iPhone, iPod, iPad 2.promotional gift ... music by link to ipod, iphone Beer Bottle cap speaker,beer cap speaker,beer cover speaker for iphone,ipod,ipadtechnical ... .8mmWeight:23gColor:Black/Red/White features and functions: bottle cap speaker,beer cover speaker MPS-539 (1) Can play ... Source: passive Welcome OEM/ODM orders wine bottle cap speaker,beer cap speaker,beer cover speaker