Hosmart Wireless Intercom System, Real Time Two -Way Communication for Home and Office, Hands Free, Portable intercom, with Crystal Clear Sound, 1000 feet Range (4packs)

HOSMART intercom system:
1.Long Range: Effective distance Approx. 1000 feet (in ideal condition, range will diminish based on walls, floors, etc).
2. Multi-Channel (1 sub channel): 1 sub intercom will be provided to you for calling family or office members, delivering announcements, or emergency calls. It can choose one to one communication or one to all simultaneously.
2. Ea...