Turn up the energy with the Sony SRS-ULT10 Wireless Portable Speaker. Featuring Sony's ULT POWER SOUND technology, it delivers deep, powerful bass and clear, room-filling sound that brings your music to life. Rugged and waterproof, it's built to handle any adventure — poolside, beach, or outdoor gatherings. Long battery life keeps the party going for hours, while the compact, portable design makes it easy to take anywhere. Pair two speakers for an even more immersive stereo experience. Bold sound, tough build, total portability — the speaker that goes wherever the music takes you.