Sony SRS-XB23 - Highly portable and powerful, Waterproof and Shockproof Wireless Bluetooth speaker with EXTRA BASS Experience captivating sound quality, with powerful, deep punchy bass and exceptional vocal clarity thanks to Sony's EXTRA BASS technology and unique X-Balanced speaker units and passive radiators. Unlike conventional circular diaphram models, the XB23's rectangular diaphragm is able to reduce distortion and increase sound pressure for irresistable sound quality. Virtually indestructable, take it anywhere, anytime. This portable speaker is waterproof, saltwater resistant, dustproof, rustproof (IP67) and shockproof (up to 1. 2m). Additionally, by enabling Stamina Mode you can enjoy up to 12 hours of non-stop playback to keep your beats flowing night and day, whatever the conditions. Ready for anything, the XB23 is waterproof, dustproof, rustproof, saltwater resistant (IP67) and shockproof (up to 1. 2m). In addition to being virtually indestructable, it also boasts up to 12 hours battery life when Stamina Mode is enabled. To make your party even bigger, connect up to 100 compatible wireless speakers with the Party Connect feature or stereo pair two of the same speakers to listen to stereo sound! Control your party speaker from your phone via the Sony | Music Centre and Fiestable apps to select your favourite playlists, cue the next sony or tailor your sound EQ to maximise your listening experience.