Inquiry (采购产品): Security, Alarm and Safety I am in need of a wireless conferencing system with the following features: 1 Chairman unit with override, 23 Delegate units. All with battery to last 8+ hours, with 2 sets of chargers. Each microphone must have a speaker on its base to enable it to run independently of a stereo amplifier system. Voice clarity must be exceptional, with no interference issues. Please indicate if wireless transmission is via Infrared, RF or Wifi. **** Hidden Message ***** Abet Laurel, President Laurel Bank, 639178668485, Country:Philippines **** Hidden Message ***** abet.laurel@gmail.com
