Plantronics BackBeat Go 2 Wireless Earbud Headphones with Charging Case for Smartphones - White (Certified Refurbished) This Certified Refurbished product is tested and certified by the manufacturer or by a third-party refurbisher to look & work like new, with limited to no signs of wear. The refurbishing process includes functionality testing, inspection, reconditioning and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty & may arrive in a generic white or brown box.Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon. Charge case enables up to 14.5 hours listen time Sweat-proof, durable design, Stable, comfortable fit Deep Sleep power-saving mode Up to 4.5 hours of listening time