Liquid error: Index was outside the bounds of the array. DOLPHIN SP-747RBT KARAOKE PARTY SPEAKER WITH WIRELESS MICROPHONE & BATTERY. SP-747RBT is our most powerful rechargeable party speaker with Dual 12 woofers and a poet 7000 mAh battery. With the included wireless microphone, you can use it at as portable PA system or karaoke machine. […]... Read More