The Anchor Audio BP-500M Master Beltpack is for use as part of a ProLink 500 intercom system. The beltpack features a compact and portable design and offers full-duplex communication without the need for a base station. It can support up to 3 remote beltpacks and unlimited listen-only beltpacks for clear communication at distances up to 500 ft away. The master beltpack has an LED indicator that flashes red when it is transmitting to a remote beltpack.
The BP-500M has an A/B channel selector, a power/volume knob and a mic gain control to precisely adjust the operation to meet your needs. A push-to-talk button lets you communicate at will, while the "always on" slide switch lets you talk freely without using the PTT button. The beltpack has a 4-pin XLR headset connector for use with Anchor Audio headsets, or any headset with a dynamic microphone. It also has Bluetooth technology, which allows you to use a Bluetooth wireless headset up to 10 ft away from the beltpack. The beltpack operates on a set of 3 AA rechargeable batteries and has a charging port for quick charging in the separately available gang charger.