Acetek FD-400A Intercom Belt Pack Unit with DL-500 Double-Ear Closed Headset

FD-400A belt packs can be used as intercom system without base station within 2 km distance up to 10 units; only bnc cable cascade connection. Wired system is not worse than wireless! Anywhere, anytime; use without interference! Up to 2 km with 10 units 10 units of FD-400A wired intercom belt packs can be used within 2 km distance. All Talk without Intercom Base Station All operators can listen and talk to each other at the same time. Headset and side tone volumes can be adjusted by operators. AA battery operation Belt packs can be operated over 200 hours by 2x AA batteries.