GOgroove BlueSync OR3 Speaker Portable Wireless Bluetooth 3.0 for Smartphone Samsung Galaxy Note 4 / Apple iPhone 6 / Moto G / Wiko Rainbow / Microsoft Lumia 530 / tablet / MP3 and Laptops - 16 hours battery life, rechargeable, with commands integrated (Electronics)
About the size of a big ball, this Bluetooth speaker is a use can not be simpler. A jack for charging (or connect a wired audio source, if you do not have Bluetooth), 3 buttons, and go. With a load of 3-4 hours, you will in normal use 12 to 15 hours