Introducing our revolutionary GSM Multi-Household Outdoor Unit Model B502! As a renowned factory, we have designed this innovative outdoor unit to cater to multiple households simultaneously. This high-performance unit offers exceptional connectivity, ensuring seamless communication across households. With its advanced technology, it guarantees reliable operation, enabling efficient synchronization among multiple users. Experience the convenience and reliability of our GSM Multi-Household Outdoor Unit Model B502, brought to you by a trusted factory. Upgrade your communication system today!