QY7 BLUETOOTH WIRELESS SPORTS RUNNING HEADPHONES HAS A HIGHER PROFILE,EQUIPPED WITH BLUETOOTH 4.1 VERSION PROVIDES HIGH-FIDELITY STEREO MUSIC AND CLEAR SPEECH WITHIN 10 METERERGONOMICALLY DESIGNED, COMPACT AND LIGHTWEIGHT IN-EAR EARBUDS FOR COMFORTABLE WEAR, 3 SOFT SILICONE RUBBER EARTIPS (S/M/L) TO FIT YOUR EAR SHAPE AND SIZE AND REDUCE EXTERNAL SOUNDDURABLE AND SWEAT PROOF, IDEAL WIRELESS EARBUDS CELL PHONES ACCESSORIES FOR THE SPORTS RUNNING GYM, HIKING, CYCLING, JOGGING, CLIMBING WITHOUT ANNOYING CABLES, LOCKS-IN STABILIZERS OFFER SECURE FIT FOR SPORTS AND FITNESSSKIP FREE WITH WIN-MARKET BLUETOOTH SIGNAL ENHANCE TECHNOLOGY EVEN PUT THEM IN BAG OR IN A POCKET HEADSETS ARE COMPATIBLE WITH MOST BLUETOOTH-ENABLED SMARTPHONES, UP TO 8 HOURS OF TALK/PLAYING TIME AND 320 HOURS STANDBY, LET YOU ENJOY YOUR MUSIC THROUGH A VARIETY OF ACTIVITIESQCY QY7 UNIVERSAL BLUETOOTH HEADPHONES MINI WIRELESS STEREO SPORTS RUNNING GYM EARBUDS HEADSETS FOR IPHONE 6S PLUS 6 5S 5 5C IPAD IPOD SAMSUNG GALAXY HTC ANDROID SMART PHONES DEVICES