It can be attached to the iron-coataining object, and can be placed at will, play with idea and creat your interesting life. The speaker comes with a silicone carrying handle, you can easily hang it on the handlebars of the bike. It come with 5W powerfull loadspeaker unit. The special passive radiator edge around the speaker unit create powerful bass. IPX6 Waterproof: Carry it to anywhere anytime you want. You don't need to worry about raining or splashing. Support custom logo.