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  How To Use Entel Skull Mic?

  Jan. 09, 2019

  The Entel Skull Mic CXR5/950 is a high performance, low profile skull bone conduction headset that provides clear conversation even in the most noisy environments.

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  What Are The Fire Bone Conduction Headphones?

  Jan. 06, 2019

  The laryngeal earphones are worn around the neck and sound through the vibration of the throat

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  Marine VHF Fireproof Explosion-proof Walkie-talkie

  Jan. 02, 2019

  The MSC.338 (91) adopted by the Ship Hai'an Society on November 30, 2012, the fire-fighting and explosion-proof walkie-talkie used by firefighters on board should be explosion-proof or intrinsically safe.

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  Technical Characteristics Of Marine Batteries

  Dec. 27, 2018

  Adapt to long-term floating charge of marine equipment

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  How To Implement The Requirements For Reducing Air Pollution ...

  Dec. 24, 2018

  By setting up the ship's air pollutant emission control area (hereinafter referred to as the emission control area), the emission of air pollutants such as sulfur oxides, nitrogen oxides

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