BeanieBeat enables you to listen to your favourite tracks on the go! The built in 40mm diameter earphones deliver amazing sound quality and require no power. Just plug the 30mm audio jack into your Smart Phone or music source for a true musical experience. With a choice of branding areas, BeanieBeat delivers not only great sound but maximum promotional impact as well.;– 100% polar fleece material;– One size fits all;– Branding by Elastika heat transfer;– Comes with a 1300mm audio cable & 30mm headphone jack as standard