This Miami Dolphins ShockBox LED Wireless Speaker features Bluetooth V4.1 enabling Crystal Clear Sound Quality & Powerful Bass while producing faster, Stable signal transmission, and lower power consumption. IPX4 Rated Shockproof & Water Resistant. It supports a wireless range of 30ft. & can last up to 3-6 hours on a single charge depending on your individual level of use. The LED Light strip alternated from blue to green and syncs to the beat of the music. Rechargable. Micro USB Charging cable included. Officially Licensed.