Bluetooth Speaker portable, 15W, Bluetooth 4.2, microSD slot, 40mm speaker, sensitivity> 90dB, frequency range 60-18000Hz, Powerful Bass, NFC, SIRI or S-Voice OS Android, handsfree call handling, IPX67 waterproof and dustproof, , AUX-IN, 4400mAh battery, up to 10 hours of playback time