Creative Muvo 20 Rechargable Portable Bluetooth Speaker(Certified Refurbished) Certified Refurbished product is tested & certified by Creative to work like-new. The product includes all original accessories, and is backed by a 90 Day warranty. Portable Bluetooth speaker - lets you enjoy music anywhere you are. For fuss-free Bluetooth pairing, just tap your NFC-enabled device to the speaker for instant pairing. Built-in microphone so you can use it as a speakerphone to answer your calls. Built-in Li-ion battery - up to 10 hours of usage from a single charge.