s650 bt 4.1 wireless bluetooth earphone in ear sports earbud with mic mini invisible stereo headset for android phone earphones

model number : bluetooth earphone model : s650 wireless earphones color : black,white,skin color,gold,rose gold material : abs voltage : dc 5v bluetooth version : 4.1 + edr bluetooth mode : hands headset transmission distance : about 7 m lithium battery capacity : 50 mah features 1 : wireless bluetooth earphone features 2 : earphone built-in hd features 3 : bluetooth earphone with sensitivity microphone features 4 : wireless earphone dsp digital audio processing system features 5 : wirele