Specifications:

Waterproof and dustproof telephone [wall-mounted portable IP network]]

Waterproof and dustproof telephone speaker [wall-mounted portable IP network]]

Waterproof and dustproof telephone set sound and light alarm [wall-mounted portable IP network]]

Waterproof and dustproof telephone loudspeaker sound and light alarm [wall-mounted portable IP network]]

Waterproof, dustproof and explosion-proof telephone [wall-mounted portable IP network]]

Waterproof, dustproof and explosion-proof telephone amplification function [wall-mounted portable IP network]]

Waterproof and dustproof explosion-proof telephone explosion-proof loudspeaker [wall-mounted portable IP network] explosion-proof sound and light alarm

Hands-free IP explosion-proof videophone

Waterproof and dustproof phone [wall-mounted hands-free telephone line]]

Waterproof and dustproof phone [wall-mounted hands-free IP network]]

Waterproof and dustproof phone [wall-mounted portable telephone line]]

Waterproof and dustproof telephone speaker [wall-mounted portable telephone line]]

Waterproof and dustproof phone sound and light alarm [wall-mounted portable telephone line]]

Waterproof, dustproof and explosion-proof phone [wall-mounted portable telephone line]]

Waterproof, dustproof and explosion-proof phone explosion-proof sound and light alarm [wall-mounted portable telephone line]]

Waterproof, dustproof and explosion-proof telephone speaker function [wall-mounted portable telephone line]]

Waterproof, dustproof and explosion-proof telephone set explosion-proof sound and light alarm [wall-mounted portable IP network]]

Explosion-proof horn

Non-explosion-proof horn

Explosion-proof telephone package