Details：
The power is 30W, the rated resistance is 8Ω, the protection level is IP65, and the explosion-proof design is used. It is an explosion-proof fire-fighting broadcast alarm speaker. Installed in the public area of inflammable and explosive places, used for amplifying and transmitting long-distance sound and alarm. Applicable to petrochemical industry, oil depot, zone 1, zone 2 and dust inflammable and explosive places, manual auxiliary alarm for fire in zone 21 and zone 22, and passed the inspection by the inspection unit designated by the state. And obtained an explosion-proof certificate.

Details：
The power is 30W, the rated resistance is 8Ω, the protection level is IP65, and the explosion-proof design is used. It is an explosion-proof fire-fighting broadcast alarm speaker. Installed in the public area of inflammable and explosive places, used for amplifying and transmitting long-distance sound and alarm. Applicable to petrochemical industry, oil depot, zone 1, zone 2 and dust inflammable and explosive places, manual auxiliary alarm for fire in zone 21 and zone 22, and passed the inspection by the inspection unit designated by the state. And obtained an explosion-proof certificate.

Details：
The output power is 30W, the rated impedance is 8Ω, and the protection level is IP55. It is aimed at the propaganda and alarm audio devices on various lifting equipment, cranes, mines and large cranes. It is suitable for the high power of lifting equipment such as rural broadcasting, ports, mines, metallurgy, etc. The loudspeaker alarm audio device is especially suitable for rural empty broadcasting, high-altitude and noisy scenes.

Details：
SIP-A2 is a user-friendly and minimalist entry-level IP phone that features a backlit graphic LCD screen with a resolution of 128X64, providing users with a clear visual experience. It provides one SIP account, comes with a local 5-party conference, and has rich business functions. In addition, the adjustable multi angle bracket can meet the needs of users in different scenarios. Easy to install and use, easy to manage, it is a powerful assistant for improving office efficiency.

Details：
Fiber optic input to the host, then fiber optic output to the next host or fiber optic switch, and convert telephone line signals to connect multiple analog telephones. It not only has the function of a fiber optic telephone host, but also serves as an analog telephone for communication. Supports connecting multiple analog phones, and can choose from 8-port, 16 port, 32 port, etc. as needed.

Details：
Based on the NGN architecture and using the international standard SIP protocol, it has excellent compatibility and functional scalability. The system expands commonly used audio and video services, achieving for the first time the integration of multiple functions such as voice exchange, group call amplification, broadcasting, recording, video linkage, alarm, contingency plan, electronic map, etc. on the same platform. By integrating voice and video, efficient emergency response can be achieved. The system can adopt a fiber optic transmission architecture, support network cascade mode, and has various advantages such as stable transmission performance, long transmission distance, strong resistance to electromagnetic interference, and convenient networking.