Price:
US$3.17

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Overview and Specifications:

Features:  
Brand new and high quality. 
Provide high quality sound for both calling and music. 
3.5mm standard plug, suitable for nearly all smartphones. 
Built-in microphone, with answer and hang up button.  
Soft clear air tube design, advanced silicone earplugs. 
Can enormously reduce radiation when making the phone call. Excellent for use in FBI, police, military, nightclubs, bars, 

paintball, security, restaurants, hotels, bouncer, warehouses, and noisy environments.
CTIA/OMTP mode switch, compatible with nearly all smartphone: for iPhone, for Samsung, for Huawei, for Xiaomi and so on. 

Specifications: 
Plug: 3.5mm. 
Type: Stereo air tube radiation-proof earphone. 
Speaker Spec: 10mm. 
Sensitivity: 102db S.P.LAT 1KHZ. 
Speaker frequency response: 20Hz – 20,000H 
Impedance: 32Ohm. 
Rated power: 100mw.

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