The Crexendo CX275 IP Phone and Yealink SIP-T41S IP Phone are commercial telephones designed for business use. Both phones feature a sleek black design and a variety of useful features such as Bluetooth connectivity, wideband audio capabilities, speakerphone functionality, and Power Over Ethernet (PoE) support. The Yealink SIP-T41S model, released in 2019, offers six phone lines and a convenient interface with USB, DSL/Phone (RJ-11), and Ethernet (RJ-45) connections. Ideal for enterprise networking and IP PBX systems, these IP phones provide efficient and high-quality communication for professional use. Complete, open box, never used