The Jabra GN2110-ST Mono Flex-Boom NC Telephone QD Headset is a professional-grade headset designed for phone calls. It features a black color with a wired connectivity option and a boom microphone type for clear voice transmission. The model number is 2110 ST, and it is manufactured by Jabra, a reputable brand known for producing high-quality audio equipment. This headset is ideal for use in call centers or offices where clear communication is essential.