PLX Devices 2559 Yaba Surface Sound Blue Portable Speaker 2.4 watts Class G amplifier turns any surface into a speaker Rechargeable lithium batteries provide up to 8 hours of play on a single charge Compact, pocket sized speaker made of non toxic zinc metal weighing 5.9 ounces (167 grams) Compatible with iPhones/iPods/iPads and Android devices FCC and CE certified