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Meet the Blackwire® 500 Series corded USB headsets with our industry-first Smart Sensor™ technology
Firefly headset with in-use indicator light lets others know that you're on the phone
listening to music and other multi-media
Modular AC Wall Charger
Plantronics Modular Lock 45588-01 Home Office Meet the Blackwire® 500 SeriesFits into the modular sockets of Plantronics amplifiers preventing plug removal. Package of 25. The Modular Locks are designed to fit into the modular sockets of Plantronics amplifiers to prevent the plug from being removed. When used in conjunction with a Quick Disconnect lock the whole headset is secured to the amplifier. The Modular Locks come in a bag of 25 pieces.