EXTRA BASS™ sound with LIVE SOUND mode Waterproof, dustproof2 (IP67 rated) and shockproof4 X-Balanced Speaker Unit for clear, powerful sound Up to 24 hours of battery life5 (EXTRA BASS™: Up to 14 hours6) Boost your party with flashing lights SPEAKER TYPE:  Full Range BATTERY LIFE:  Approx.24h INPUT AND OUTPUT TERMINALS:   USB A(Only for DC OUT) FREQUENCY TRANSMISSION RANGE:  20 Hz - 20,000 Hz (44.1 kHz sampling)