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The 2.4GHz band low-power wireless device "Doko Demo Call" is a bidirectional digital wireless communication system that allows for conversations within a group without interception from other devices or group settings, using a proprietary communication method developed in-house. Despite its compact size, it is equipped with a 70mm diameter speaker, making it audible even in large rooms. It can also be used as a megaphone when combined with a portable device. It employs a digital audio amplifier, achieving a small size, lightweight, and low power consumption. Being a wireless communication system, it can be easily installed anywhere and can be called from anywhere. 【Features】 ○ Simultaneous group notifications possible → Up to 4 billion members can be created within one group ○ Loud sound playback ○ Small, lightweight, and low power consumption ○ Easy operation with no wiring required ○ Automatic switch to battery operation during power outages For more details, please contact us or download the catalog.

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