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Shenzhen Hengsheng Science And Technology Co., Ltd. is specialized in Home merchandise,Digital communication products,Mobile phone accessories since established in 10 years ago.So far,our company has established its branch companies in major cities throughout the country.Formed in Shenzhen bright District Baotang high tech Park,City area,Shenzhen City,Guangdong Province,China as the center, the radiation sales system and service network.Details:Headphones are made in a range of different audio reproduction quality capabilities. Headsets designed for telephone use typically cannot reproduce sound with the high fidelity of expensive units designed for music listening by audiophiles. Headphones that use cables typically have either a 1/4 inch (6.35mm) or 1/8 inch (3.5mm) phone jack for plugging the headphones into the audio source. Some stereo earbuds are wireless, using Bluetooth connectivity to transmit the audio signal by radio waves from source devices like cellphones and digital players. Due to the spread of wireless devices in recent years headphones are increasingly used by people in public places such as sidewalks, grocery stores, and public transit. Headphones are also used by people in various professional contexts, such as audio engineers mixing sound for live concerts or sound recordings and DJs, who use headphones to cue up the next song without the audience hearing, aircraft pilots and call center employees. The latter two types of employees use headphones with an integrated microphone.
