Sony's SRS-XB43 is the bigger sibling in the EXTRA BASS line, with X-Balanced front speakers, dual upward tweeters and dual passive radiators for room-filling sound. Multi-color line-light and flashing strobes turn the speaker into a party centerpiece, while Party Connect lets you link up to 100 compatible XB speakers for bigger setups. IP67 sealing and a shock-resistant build make it ready for poolside and beach use.