You may have heard OneCall carries Bluetooth speakers, but the various options and features these wireless speakers offer will blow your mind. Not only do these speakers wirelessly connect to a smartphone, tablet or iPod, but most have a rechargeable lithium ion battery for hours of endless music. For added volume, select speakers can be chained together while others have built-in speakerphones so you can make or receive phone calls between playing your favorite artists. Has the battery on your mobile phone died just when you really need it? Some of these portable speakers can re-charge mobile devices with their included USB connection. When browsing our site, look for other features like solar powered, NFC, waterproof & more to find the perfect wireless speaker for your needs.