The Blackwire 5200 Series fits your busy work routine. Ergonomic design for lasting comfort. And easy-to-use connectivity lets you work across a variety of devices throughout the day. Icecat 279 characters Your path to comfort The Blackwire 5200 Series fits your busy work routine. Ergonomic design for lasting comfort. And easy-to-use connectivity lets you work across a variety of devices throughout the day.