How to use
Lift the microphone, enter the number in the whitelist, and press OK to dial out.

Phone application
Stations, campuses, docks, airports, scenic spots, squares, shopping malls, residential properties, municipal engineering, regulatory complaints, convenience services, hospitals, vehicle management offices and other places.

Phone features
1. It is made of cold-rolled steel, and the surface is sprayed with high-grade outdoor powder paint, which has the characteristics of cold-proof, frost-proof, dust-proof, moisture-proof, wear-resistant, and anti-violent percussion;
2. The handle is made of German Bayer ABS+PC alloy material, and adopts an integrated evacuated molding structure. Military-grade transmitter and receiver are selected internally, and are equipped with permanent magnets. It has the characteristics of explosion-proof, waterproof, moisture-proof, dust-proof, anti-noise, cold-proof, frost-proof, and anti-violent percussion;
3. The hook is made of zinc alloy stamping, after polishing, electroplating and other surface treatment processes, the back is encapsulated with imported reed switches from abroad, which can be used with the built-in permanent magnet magnet in the handle to switch between off-hook and on-hook. The hook has the characteristics of anti-cold, anti-freeze, anti-oxidation, anti-corrosion, and anti-salt spray;
4. The buttons are formed by zinc alloy stamping, and after a series of processing techniques such as polishing, electroplating, glue (oiling), etc., matching the gold-plated PCB board, good hand feeling, good electrical performance, and service life ≥ 500,000 times;
5. The main board of the phone adopts foreign-imported single-chip microcomputer to cooperate with the company's self-grinding chip development. All components adopt SMT chip technology, which has rich functions and high integration. It reserves two dry node interfaces with one open and one disconnect to enhance the connection with external equipment. Linkage
6. The overall protection level of the phone is: IP54. If you need to install it in the open air, you need to install a rain cover.