JBL Pulse Portable Bluetooth Speaker - 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 Speaker Configuration: 2.0 Driver Type: 1.57" RMS Output Power: 12 W Frequency Response: 100 Hz to 20 kHz