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Shenzhen Hengsheng Science And Technology Co., Ltd. has been devoted to study the needs of Hmsoxnd industrial customers, ant tailored to customers demand and solutions. The advantage of Constant rise lies not only in the industry-leading technology and the elite professional team, but also to provide excellent services in I7S,TWS,I7S TWS,and the enthusiasm of positive innovation and faith of respect promise . Become a customer trusted earphones for iphone 7 integrated service providers, to help customers realize the business value of earphones, is Constant rise unswerving mission and pursuit. 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.
