Flexible metal mic boom  Soft leatherette ear cushion  RJ9 QD connector included Lightweight: 95g  MM2 Superior wideband sound with Neodym speaker 300° flexible boom with noise-cancelling ECM Single wire design for users’ convenience RJ9 QD connector included Ultra light-weight: 79g (without cord) Superior wideband sound with Neodym speaker 300° flexible boom with noise-cancelling ECM Single wire design for users’ convenience RJ9 QD connector included Ultra light-weight: 56g (without cord) The PA1 allows you to create announcements by initiating a call from any Snom telephone. The PA1 has a highly efficient 4-watt amplifier that provides coverage for an entire room or floor space. It augments your existing SIP PBX with the built-in high-performance amplifier which is ideal for broadcasting an- nouncements or to pipe background music in assigned rooms, hallways, and office floors. 4-watt Class-D amplifier 4 controllable output pins Broadcasts over SIP and Multicast Robust housing Wall and ceiling mountable A100D A100M PA1 Public Address System Headsets ACUSB adapter cable for USB devices ACPJ adapter cable for 3.5mm jacks ACPJ25 adapter cable for 2.5mm jacks Quick Disconnect Optional Accessory cables for A100 Headsets only