Designed for Sports---Perfect ergonomic design featuring an unique neck-strap and Ultra light weight designed Specially for easy carrying for all day comfort.3 pairs of earbud(S/M/L) to fit different ear size.</br>Super Sound---Advanced APTX technology offers incredible sound quality with deep bass and crystal clear treble.The sports earbuds for running have noise-reduction technology and sound enhancement options for extremely good sound quality.These headphones also supports Easy Magnetic earpiece storage Noise reduction & Echo cancellation.</br>Convenient Use and Easy to Operate---Play skip and pause music control volume and pick up calls. Vibration alert on power on and coming calls and the battery level of these headsets will be displayed on your cell phone.</br>Never Miss A Call---Do not worried miss the call when running or other. Bluetooth connect phones let you use the best Bluetooth headset to answer calls with a touch so your sports headphones never let you miss a call.</br>Fast and Easy to Connection---Pairing is just Easy and Quick with a Simple Switch Button. Our Bluetooth Headphones Can Pair with 2 Different Bluetooth Devices Simultaneously?? Such as an iPhone6 SE?? iPad?? Android phone??Samsung S7 edge S7 ??S6 edge ??NOTE 5 ??HTC and other Bluetooth Enabled Devices.</b