Sell Stereo Wired Earphone D21 HIFI Audio best price

Stereo Wired Earphone D21 HIFI Audio - Short Press: Answer Calls, Call - Long Press: Rejection/Hang up - Music: Pause and Play - On a Song: Press 3 Under - Next Song: Press 2 Under - On wired earphones, generally, the shortcut is just a button around the microphone, to play/pause and pick up calls WARNING: Adjust Earphone sound to the proper volume to avoid ear damaging. Never use earphone while riding a bicycle, a motorbike or driving a car. It is dangerous to increase the sound volume too high. Because you can't hear extend sound. Take great care traffics around you. Please don't pull the cord too high incase of breakage. Capital L is left , Capital R is right.