iSound Fire Waves Bluetooth Speaker with microphone and changing LED light effects (black) Connects wirelessly to Bluetooth enabled devices or via 3.5mm audio cable Crystal-clear sound and surprisingly powerful bass for its small size Comes with color-changing glowing light mode Integrated microphone with noise shielding for clear speakerphone calls Li-Poly battery with 5 hours of playtime at 70% volume and 40 hours of standby time