With an unrivalled 100 hours of battery, enough to keep you going and your phone charged all weekend, great for festivals. 50 watts of power with a custom 70mm speaker driver, serious amounts of bass & clarity making it the loudest portable speaker for its size The Minirig App opens up loads of extra features from the 3-band equalizer to handsfree calling and headphone receiver mode, available on IOS, Android and Chrome (PC/MAC) Link up as many Minirig 4 speakers as you can wirelessly with Bluetooth! great fun with friends giving that party the boost it needs Designed and built in Bristol, United Kingdom, hand-built by a passionate team of music enthusiasts from DJs to bass guitar players Minirig 4 Bluetooth Speaker Loudest portable speaker of its size.,With an unrivalled 100 hours of battery, enough to keep you going and your phone charged all