SoundLink® Wireless Mobile speaker - Clear, detailed sound brings your music to life - Connects wirelessly to your mobile phone, tablet or other Bluetooth® device - Compact and lightweight—fits in your bag or backpack - Rechargeable lithium-ion battery provides up to 8 hours of non-stop music - Built-in cover protects system and unfolds into a stand for instant music anywhere Your favorite music's on your mobile phone. Now you can play it out loud whenever and wherever you want, with sound quality you can't get from any other Bluetooth® speaker. The SoundLink® Wireless Mobile speaker is small enough to grab and go wherever you go so your music is always ready to liven up any event, planned or not. It works wirelessly with your iPhone, Android, Blackberry or other Bluetooth® device, like a tablet or laptop. There's nothing to hook up or dock. You can play music files or stream other Internet stations. And the rechargeable battery keeps the music playing for hours.