The IMT804 Sonic Boom Bluetooth Speaker will pump up the party with it’s high quality sub-woofers, midrange and tweeter for a full spectrum of any song on your playlist. Press the beast mode button to increase the bass for an even more amplified sound! Featuring a 50ft wireless range, up to 20 hour of battery life and 3 built-in smartphone ports not only keep the party going but your phone too! If things get too rowdy, this speaker is IP67 certified waterproof, shockproof, snowproof and it FLOATS! Pair up to 50 speakers with House Party mode and never worry about damaging your phone with the included smartphone dry box!