☆ Chinese large-screen liquid crystal display, can store 1000 messages

☆ compatible with a wide range of standard communication protocol: Ademco Contact ID and 4 +2 format, to facilitate to use host networking with the major brands at home and abroad

☆ standard 2-way calling cards, can be expanded to a maximum of 20 Road, phone cards

☆ caller ID feature can trace vicious nuisance telephone calls

☆ unique way to receive alerts, allow users to save 95% of telephone charges

☆ Anti-lightning design, military standards, Decade durability