Enjoy booming music on-the-go with the Sony SRSXB10/BLK Portable Wireless Speaker in black. Compact and lightweight, this IPX5 water-resistant speaker sports a convenient strap that allows you to carry your music outdoors. Its EXTRA BASS passive radiator improves low-end tones and bass, producing brilliant sound above its size. This Sony SRSXB10/BLK Portable Wireless Speaker in black has 16-hour battery life that enables you to play music all-day long. Connect your Bluetooth- and NFC-enabled devices to this monaural speaker, and stream your favorite numbers instantly. Effortlessly connect toadditional speakers to experience utmost stereo sound.