Polycom Spectralink 8440
WIFI support including 802.11, on A/B/G/N networks. Fully Integrated Push-to-Talk button. SIP Integration. IP 64 durability rating. Up to 12 hour talk time. Built on open standards, the Spectralink 8400 series transforms the delivery of mobile enterprise applications by bringing the power of thin client and browser technology to the front-line professional in healthcare, retail and education workplaces.