Volkano Helios Series Dual 8" Party Speaker + Microphone & Light Effects\r\nSPECIFICATIONS\r\nBluetooth Version: 5.0 + EDR\r\nRange: 10 m / 33 ft\r\nTotal Power Output: 2 x 40 W = 80 W RMS\r\nMax Size USB/SD: 64 GB\r\nSensitivity: 85 dB\r\nSignal to Noise: 65 dB\r\nBattery Capacity: 12 V DC , 4.5 Ah\r\nCharge Input: 15 V DC, 2.0 A\r\nCharge Time: 7 - 8 Hours\r\nPlayback Time: 2 – 6 Hours\r\nWoofers\r\nDriver Size: 2 x 8"\r\nImpedance: 4 O\r\nFrequency: 50 Hz – 20 kHz\r\nTweeter\r\nDriver Size: 2"\r\nImpedance: 8 O\r\nFrequency: 2 kHz – 20 kHz