(TrendHunter.com) Headphone makers Bang & Olufsen have teamed up with telecommunications giant Cisco to launch a brand new set of high-end business headphones that are designed to offer a combination of high-... (TrendHunter.com) Headphone makers Bang & Olufsen have teamed up with telecommunications giant Cisco to launch a brand new set of high-end business headphones that are designed to offer a combination of high-...