Strong, Loud Audio for Wireless Streaming 20W RMS 45 x 80mm woofer Tweeter 16mm (10W RMS) PartyBoost feature The JBL Portable app Response to frequency: 63 Hz–20 kHz Ratio of signal to noise: > 80 dB 45 °C is the maximum operating temperature. Protection of USB charges IP67-compliant dust and water resistance Eco-friendly packaging Version of Bluetooth®: 5.1 Lithium-ion polymer battery (4,800mAh, 12 hours of playback and 2.5 hours of charging time) Using a USB Type-C charging cable to supply power