SRS-XB23 support EXTRA BASS sound which is achieved on the XB wireless speaker line up through Sony’s renowned audio technology. Backed by Sony’s newly developed X-Balanced Speaker Unit, these speakers provide sound quality and powerful sound pressure for a richer, deeper and more rewarding listening experience. The unit’s non-circular shape ensures maximum punchy bass, by increasing sound pressure around the speaker’s diaphragm. The new speakers added to the Extra Bass series have an IP67 rating which makes them dustproof, rustproof and waterproof. The speakers are also saltwater resistant making them the best travel partners for a visit to a beach, forest or dessert. The speakers spot a shockproof durable design which has gone through various levels of extensive shock testing and can withstand the inevitable knocks, bumps and scrapes. With built-in Google Assistant manage your day, simply by asking your assistant, enjoy entertainment, connect with friends, get information, listen to music and notifications, set reminders and much more through hands-free, voice-controlled experience. The built-in microphone in the speakers allows it to catch ambient sound competitively and ensure a seamless hands-free music experience. Switch effortlessly between songs and calls by just pressing the multi-function button and a built-in mic enables you to take hands-free calls from selected smartphones. The party connect feature lets one connect to 100 compatible wireless speakers with Bluetooth technology to sync the music and lights to ensure everyone dances to the same beat. The music festival atmosphere created by the speaker.