Bluetooth Speaker, GRDE Outdoor/Shower/Sport IPX4 Waterproof Bluetooth Speaker Support TF Card FM Stereo,Hands-free Calling (Orange) IPX4 Waterproof : 1m depth, 30 minutes; Small tadpole design, fashion and easy to carry Support FM and TF card: Previous/Next song,Volume down/up; Hands-free Calls: Answer,call,end,reject,redial Holder Speaker: The foldable small tail, you can hang it on the metal framework, wrapped around the bike etc Sucker Speaker: With the sucker, you can suck the speaker on glass, especially the glass in the bathroom. Then you can enjoy the beautiful music when you are bath Rechargeable Battery: Full charging 2 hours, you can use 8 hours at maximum volume