SHARKK Beast 45W Bluetooth Speaker 2.1 Channel Wireless Speaker with Subwoofer Powerful Home Speaker with 4400mAh Powerbank This BEAST of a bluetooth speaker comes with ADVANCE MAXXBASS TECHNOLOGY. Exactly as that sounds, this wireless speaker will have ridiculously killer bass for a portable speaker this size POWERBANK SPEAKER This speaker has a 4400mAh Power Bank External Battery Charger making this the perfect outdoor speaker or home audio speaker for any occasion Additional features on the perfect audio speaker include Siri and S-Voice support, Hands free calling with microphone, LED Power / Charging Status indicator, and LED button back lights activated by thermal sensor Specifications for the beast wireless speaker: Lithium battery capacity: 11.1V / 4400mAh, Charging Voltage: 15V, Battery voltage: 11.1V, Audio Cable: 3.5mm Package Includes: Sharkk Beast portable bluetooth speaker, Audio Cable, Power Adapter, and User Manual