Wireless Bluetooth Speaker,capsul (White) Ultra-portable, Powerful Sound with Build in Microphone, Works for Iphone 4, 4s, 5, 5s, 6, 6 Plus, Ipad Mini, Ipad 4/3/2, Itouch, Blackberry, Nexus, Samsung, Htc, Lg and Other Smart Phones, Tablets and Mp3 Players Powerful loud and clear 4 speakers. (2 speakers, 2 sub-woofers) Wirless Bluetooth Ultra portable and sleek design built-in microphone for phone calls works with every audio source using Bluetooth, AUX cable, and micro SD card Rechargeable battery lasts for 6 hrs