Produces powerful live sound from every angle, the Bose SoundLink Revolve II portable Bluetooth speaker lets you enjoy the same high quality sound wherever you are near the speaker. Place it in the center of the action or near a wall to let the sound radiate around you. Durable and water resistant Do not worry if you hit the SoundLink Revolve II - the soft and flexible construction means that if you throw it in your bag or accidentally drop it, it is not easy to wear. The SoundLink speaker is water and dust resistant, making it ideal for a beach party or barbecue. Smartphone Connectivity Using the Bose Music app, you can easily control SoundLink from any Bluetooth device. So if you need to leave the room, your friends can easily control the music using their phone. In case your party needs even more volume, the app lets you connect multiple SoundLink Revolve II speakers in party mode - improve sound quality and play audio with SimpleSync. Voice assistants If you do not have your phone usable, you can use the Revolve II Speaker to request a track or make a call by simply pressing and holding the multifunction button to use Siri or Google Assistant. Alternatively, you can pair it with an Amazon Alexa enabled device, such as the Echo Dot for real hands-free control. Up to 13 hours of battery life Enjoy all-day listening without the need for a charger. If you want to charge it in style, there is an extra charging cradle (sold separately) which you can also use as a cradle.