The EnGenius FreeStyl SIP Handset expands your cordless phone system with advanced Session Initiation Protocol (SIP) technology, ensuring clear voice communication. It operates on DECT wireless technology, allowing for a range of up to 100, 000 sq. ft. in retail settings, 25, 000 sq. ft. in offices, and up to 10 acres in open areas like farms or ranches. The handset features a rechargeable lithium - ion battery with a talk time of up to 6 hours and a standby time of 50 hours. With support for multiple voice codecs and a maximum of 4 simultaneous calls, this handset is ideal for busy environments. Its sleek design and user - friendly interface make it a perfect addition to any communication setup.