The Yealink W59R Rugged DECT Cordless Handset is a black cordless extension handset with Bluetooth interface for caller convenience. This handset features Opus voice codecs and DECT\CAT-iq cordless phone standard. It includes speakerphone capabilities and various call services like voice mail, caller ID, call waiting, call forwarding, and call transfer. The Yealink W59R is a rugged and reliable choice for enterprise networking and IP PBX systems, offering quality communication solutions for businesses.