VTECH VCS754 ErisStation SIP Conference Phone with Four Wireless Mics Additional Features: Includes 4 x DECT 6.0 Wireless Mics Integrated Base Speakerphone 2 x Fixed Microphones in Base Up to 8 Hours Talk Time per Wireless Mic Up to 70 Hours Standby per Wireless Mic USB Connectivity Supports up to Three SIP Accounts