Miccus pool party SPX9: Rainproof, Water Resistant, Bluetooth Wireless Stereo Speaker System (Blue/Gray) Spashproof - Rubber coated to provide rain and water protection (IPX4). Dynamic sound - 5 watt speaker system with 2 front fired speakers and a rear bass radiator. Built-in mic with noise cancelling technology for speakerphone use. USB power port for emergency charging of your phone or other devices. Uses micro USB to recharge the internal battery for up to 6 hours of playtime.