Boost your party with the SRS-XB31 wireless speaker. Hit the LIVE SOUND button and hear your music in a whole new way with a unique three-dimensional sound experience - creating festival vibes wherever you go anytime, anyplace. The SRS-XB31 has multi-coloured flashing lights that sync to the beat, including new line lights and a flashing strobe. Enjoy the same song with Wireless Party Chain by connecting up to 100 wireless speakers with Bluetooth technology. Hear your music in a whole new way with live sound mode. 24h hour battery life to party day & night. Waterproof & dustproof design (ip67 rated) so you can take your speaker anywhere. 1 speaker. Compatible with iPod, iPhone and iPad. Bluetooth compatible. Frequency 2Hz-2Hz. General information Model number: srsxb31l. Ce7. Size H14.1, W26.7, D11.4cm. Speaker diameter 4.8cm. Mains operated. Power from USB. USB cable included. Batteries required 1 x rechargeable batteries (included). Battery life: 24 hours.