The Plantronics CS540 Convertible DECT 6.0 84693-01 is a versatile business phone set made by the reputable brand Plantronics. This model is manufactured in Mexico and offers high-quality communication capabilities for office and industrial settings. Although the headset is missing, this open box product is still in excellent used condition, making it a great value for businesses looking to upgrade their telecom systems. The ear piece portion of the item is there and working in EUC.  Only used a few times.  Headset was used and no longer working but wireless earpiece with boom microphone is still there