TOP QUALITY AUDIO: Experience your favorite music on the go without compromising on quality via bluetooth headphones Aptx to enjoy CD-like quality audio.</br>STABLE CONNECTION SIGNAL: Latest bluetooth V4.1 chip provide seamlessly connect your devices via the Bluetooth functionality up to 33ft.enhanced audio quality and more stable bluetooth pairing.</br>LIGHTWEIGHT & COMFORTABLE WEARABLE: Enjoy the interchangeable soft earbuds and secure ear hooks Streamline design improved headphones wearability that you feel like nothing on their back head when you running.</br>LONG-LASTING USAGE: Large battery capacity allows the headphones up to 8 hours of continuous play audio with balanced bass and natural treble or 10 days standby time with 2 hours charging time.</br>ALUMINUM ALLOY CONSTRUCTION: Build TPE material with precision aluminum in bluetooth earbuds Premium soft smooth silicone gel surface helps sweat proof</br></br>Product Description</br></br><b>Lightweight As Feather</b><br> The COULAX CX10 headphones feature an ultralight build(0.44oz) that's 10% lighter than conventional headphones.In-Ear Design fitting ear properlywith Ear hooks assist??wear more comfortable and stable??not easy to fall out. <br><br> <b>aptX and CVC6.0 Stand for CD-Like Sound</b><br> The aptX codec makes up for it by allowing you to stream a pure audio quality that is nothing short of what you get with a CD player. On top of that?? the CVC noise isolation technology reduces all surrounding noise so that this won't affect you music or calls. <br><br> <b>Stable Connected With The Bluetooth 4.1</b><br> The Bluetooth 4.1 technology provides a stable connection between the headphones and your devices??these earphones are make sure your call is transmitted