Latest Radio Fitness Exercise Bluetooth 4.0 Speaker Foldable Tadpole-shape Hook Sucker Mini HIFI Stereo Outdoor Travel Shower Bath Sport Waterproof Bluetooth TF FM Speaker Hands-free Speakerphone-Blue Foldable small tail base, you can hang it on the metal framework, travel bag,fitness equipment,wrapped around the bike etc. Sucker base: With the sucker, you can suck the speaker on glass,especially the glass in the bathroom or fitness room. IPX65 Waterproof : Make sure screw the bottom cup toughly and then you don't not need to worry it'll not get damaged by water; small tadpole design, fashion and easy to be carried and taken. Support FM and TF card: Previous/Next song,Volume down/up; Hands-free Calls: Answer,call,end,reject,redial. Rechargeable Battery: Full charging 2 hours, you can use 8 hours at maximum volume.