Waterproof Bluetooth speakers, IPX4 Phone handsfree call re-dial the last phone number High-sensitivity microphone Suction cup for adsorbed on smooth surface Working time: 4 hours Rated power: 3W  Package contents: 1 x waterproof shower Bluetooth of your color choice, micro USB cable, user's manual Note: will not work with any auxiliary cable, pairing is strictly via wireless Bluetooth Warranty Hassle-free 12-month