The Plantronics Calisto P240-M USB Handset is a sleek black corded handset designed for use with PCs and softphones. With a single phone line and USB interface, this handset from the reputable brand Plantronics offers reliable connectivity for home or office use. Its compact and modern design makes it a practical choice for those looking to enhance their communication setup. Been taken out of box opened up but not used put under the bed for ages.