This is a yellow and black EBODA B18P Bluetooth shower speaker. It is waterproof, portable, and has a battery capacity of 2000 mAh. The speaker has a RMS power of 5W and features AUX and USB audio inputs. It is a universal compatible model suitable for various devices. The item dimensions are 3.75" in length, 4.5" in height, and 2" in width, making it compact and convenient for on-the-go use.