Vifa Oslo Compact Rechargeable Hi-Resolution Bluetooth Portable Speaker- Sand Yellow CONNECTIVITY - Smartphone and other devices connect through Bluetooth aptX. Can also connect through Aux cable (included.) Powered by lithium ion battery DON'T MISS A BEAT - Force Balanced Woofers powered by a Digital Pure Path Amplifier PREMIUM SOUND QUALITY - DSP crossover optimized for low distortion and high precision CRAFTED DESIGN - The surprising feel of Oslo comes from its wool cover. Selected yarns carefully woven into a specific pattern, designed by Kvadrat. IN THE BOX - Vifa Oslo, Power Supply, Aux mini cable, Travel bag, Manual, Quick Guide & Warranty