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The following are for reference only. Different mobile phone or music player software, will be different.Some phones and music player software do not support all the features.Main Button:1, Long Press: Power ON/OFFRefuse to answer the phone2, Short Press: answer/hang up the phone. play/pause the music+ -:1, long press: change songmute /open the Mic..

in-line controls: Press only once can control micraphone and volumeBad~perfect: 0%-100%Clarity: 80%Noice reduce: 75%Richness: 75%Stereo: 75%Appropriate music style: pop, hip-hop, jazz, rep, R&B, symphony, ballad..

• Mini in-ear wireless invisible design;• Super Mini Size and hidden in the ear, no wearing burden;• Ergonomic earphone design, stable in the ear, good for driving, sports, business, or leisure;• Bluetooth V4.1 + EDR wireless signal with 10-meter range.• Deep DPS noise-reduction microphone ensures clear call quality;• Voice prompt for pairing, call..