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  6. Multi-Party Simultaneous Call and Work Communication System 'DJ-M-SYSTEM'

Multi-Party Simultaneous Call and Work Communication System 'DJ-M-SYSTEM'

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last updated:Jun 18, 2026

STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック)
STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック)
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Everyone in the group can talk in real-time, so productivity increases!

The "DJ-M System" is a multi-simultaneous communication and work contact system that allows free communication among up to eight sub-units by wired connection of two main units. No licenses, qualifications, or applications are required. The running cost is minimal, only covering the expense of batteries. There are no restrictions on usage, and it can be used immediately after installation. The applications are limitless, including construction, work, factories, various service industries, and event operations. 【Features】 ○ Can be used by up to 8 people with pair connection ○ Basic setup is simple; just select the channel and individual identification number for both the main unit and sub-units → A user-friendly system that thoroughly simplifies complicated settings ○ By adding a monitor user, communication with even more people is possible ○ Comes standard with a newly designed free belt clip For more details, please contact us or download the catalog.

    Safety and consumables
07_DJ-M.png

Multi-Party Simultaneous Call and Work Communication System 'DJ-M-SYSTEM'

07_DJ-M.png
07_DJ-M.png
  • STJ Rentec Contact Form
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【Features】 [Subunit DJ-M1] ○ Sturdy polycarbonate body ○ Compact and lightweight size → Width 57mm × Height 98mm × Thickness 28mm (excluding protrusions) → Approximately 170g including batteries ○ User-friendly design with Japanese display and beautiful aesthetics [Main Unit (Fully Waterproof) DJ-M1R] ○ Machined from aluminum block, fully waterproof outdoor permanent installation body ○ Two high-performance antennas tuned specifically for transmission and reception frequencies ○ Adoption of compander circuit enables high-quality calls with reduced noise [Main Unit (Indoor Use) DJ-M2R] ○ Small size comparable to a hardcover book, weighing only 900 grams ○ Installation is as easy as hanging a wall clock ○ Body color is black, which easily matches any environment ● For more details, please contact us or download the catalog.

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Applications/Examples of results

【Examples of Use】 ○ Various construction sites / Crane and heavy machinery operations / Equipment installation and adjustment tasks, etc. ○ Service industries such as restaurants, fast food, and amusement halls, as well as research and experimental facilities. ● For more details, please contact us or download the catalog.

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Multi-Party Simultaneous Call and Work Communication System 'DJ-M-SYSTEM'

Multi-Party Simultaneous Call and Work Communication System 'DJ-M-SYSTEM'

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STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック)

STJグループ(株式会社サンテレコムジャパン、株式会社STJレンテック)

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The STJ Group (Santelecom Japan Co., Ltd. and STJ Rentec Co., Ltd.) specializes in the sales, rental, and maintenance of wireless equipment and related solution products. (e.g., commercial wireless devices, IP wireless devices, license-free specific low-power transceivers, solutions such as cameras and relay devices) ~List of Locations~ ■ Hokkaido Sales Office / Experience Center Sapporo ■ Tohoku Sales Office ■ Kanto Sales Office (Head Office) / Experience Center Tokyo ■ Kansai Branch / Experience Center Osaka ■ Kyushu Sales Office Additionally, the group company Santelecom Japan Co., Ltd. also engages in mobile corporate business. With a track record of implementation in major corporate BCP, we offer BPO services where Santelecom Japan serves as the customer contact point, providing support for bulk management of devices, as well as assistance for malfunctions and losses. We can also provide comprehensive support proposals, including consulting on corporate communication environments and suggestions for office products and business improvement tools.

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