The product is a pair of Sennheiser Pro 1 mono headsets with two bases, designed for professional use in business and industrial settings. Known for their high-quality audio and durable construction, Sennheiser headsets are popular among professionals who require clear communication while on calls or using a business phone set. The Pro 1 series from Sennheiser is known for its superior sound quality and comfortable design, making it a reliable choice for those needing reliable communication equipment./// no power adapters/ no cables /