THE AIWA PROMISE - Your purchase includes a 1-year WARRANTY and a 60-day RISK-FREE SATISFACTION GUARANTEE. If you're not completely thrilled with your Exos-9, send it back for a full refund, no questions asked. We'll even pay for return shipping. HOME-STEREO SOUND IN A PORTABLE PACKAGE - With 200 watts of continuous power and 5 drivers, including a 6.5" dual-voice coil subwoofer, the Exos-9 delivers amazing stereo sound whether you're working alone in the garage or grilling with friends on the patio. Deep bass, distortion-free loud volume, no clipping. ENTERTAIN INSIDE OR OUT - Keep the Exos-9 plugged in or enjoy up to 9 hours of incredible unplugged sound with the included 57.2 Wh lithium-ion removable battery pack. Perfect for tailgates, camping, backyard fun, the beach, fishing, and any other outdoor activity where nature forgot to install power outlets. Your guests will pass out before the Exos-9 does. 110-240V compatible.