Baytek&reg; Two-Tone Lightweight Bigbox Portable Bluetooth Speaker w/ Easy Wireless Connection & Bluetooth Capability, Works with Bluetooth Enabled Devices including iPhones, Samsungs, Androids, and other Mobile Devices, Black/Blue Incredible sound quality for up to 8 hours of wireless play Portable and lightweight speaker with a built-in rechargeable battery and mic for phone calls Easy wireless connectionworks up to 30 feet away Compatible with all Bluetooth devices and includes a slot for Micro SD, AUX and USB