Ravon Gembox Bluetooth Universal Speaker with Aux Input - Black (Certified Refurbished) This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The resulting product includes all relevant accessories, comes with a minimum 90-day warranty, and may arrive in a generic box. Only sellers who meet a high performance bar may offer Certified Refurbished products on Amazon.com Seamlessly stream music from any Bluetooth device, Class D digital amplifier Ravon Gembox W65 speaker supports Bluetooth protocol V2.1+EDR and A2DP 1.2 audio streaming profile Connect an iPod or MP3 player via the 3.5mm port Charge your device while listening to music via the USB port