Shanghai Zhongchangjiang Telecommunication Technology Co., Ltd.

Products List
Earphone&headphone

Earphone&headphone

1:FC radiation-proofing earphones can reduce radiation by 2640 times than phones. 2:Our product was patented in Germany.        Ear plugs of FC Changjiang radiation-proofing earphones are far away from loud speakers with 200-300mm acoustic lines to separate...
Mobile phone earphone

Mobile phone earphone

1:FC radiation-proofing earphones can reduce radiation by 2640 times than phones. 2:Our product was patented in Germany.        Ear plugs of FC Changjiang radiation-proofing earphones are far away from loud speakers with 200-300mm acoustic lines to separate...
Bluetooth air tube radiation proof earphone

Bluetooth air tube radiation proof earphone

1.Mono bluetooth antiradation headset 2.Germany, patents and PCT 3.air tube/hollow  Looking for agents all over the world, we expect to cooperate with you...
Air tube radiation proof mobilephone headsets

Air tube radiation proof mobilephone headsets

1. High technology air tube process 2. Safe mobilephone air tube earphone Looking for the world agent. We expect to cooperate with you!Hollow Air Tube Headsets  Safety tips from non-profit organizations:  They advise “Use a wired earpiece or headset (hollow air...
Bluetooth air tube radiation proof earphone

Bluetooth air tube radiation proof earphone

1.Mono bluetooth antiradation headset 2.Reduces radiation by 99%.  Looking for world agent, we expect to cooperate with you !  1. Electret condenser microphoneOffset4.5VDC        2.2KilohmSensitivity—42±3dB...
Radiation free earphone bluetooth

Radiation free earphone bluetooth

1.Mobile phones and FC safe earphones are safe mobile phones. 2.Reduces radiation by 99.9%. 3. Bluetooth radiation earphone Hollow Air Tube Headsets  Safety tips from non-profit organizations:  They advise “Use a wired earpiece or headset (hollow air tube is...
FC radiation proof headsets

FC radiation proof headsets

1.Mono bluetooth antiradation headset 2.Reduces radiation by 99%. Looking for agent all over the world,  we expect to cooperate with you!! 1. Electret condenser microphoneOffset4.5VDC        2.2KilohmSensitivity—42±3dB...
Radiation proof earphone

Radiation proof earphone

1.Mobile phones and FC safe earphones are safe mobile phones. 2.Reduces radiation by 99%.  1. Electret condenser microphoneOffset4.5VDC        2.2KilohmSensitivity—42±3dB f=1KHz,spL=1PaDirectivityomni directionalStatic...
FC Radiation proof cellphone earphone

FC Radiation proof cellphone earphone

1.Mobile phones and FC safe earphones are safe mobile phones. 2.Reduces radiation by 99%.  Looking for world agent, we expect to cooperate with you.  ...
Anti radiation earphone

Anti radiation earphone

1.Mobile phones and FC safe earphones are safe mobile phones. 2.Reduces radiation by 99%.  1. Electret condenser microphoneOffset4.5VDC        2.2KilohmSensitivity—42±3dB f=1KHz,spL=1PaDirectivityomni directionalStatic...



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