Sound great and cancel out 90% of back ground noise. Easily get as loud as you need this wireless headphones to be.</br>Simple too set up and operate. Easy Bluetooth connection.</br>Very lightweight and portable doesn't take to much space very easy to store in your bag great for travel.</br>Fits and stays in your ear nicely. You can see the battery level of the headphones on your screen (next to the Bluetooth symbol).</br>It features hands-free calling have voice command for picking up / rejecting calls and control for music.</br></br>Product Description</br></br><p><strong>A Good Fit That Feels Secure </strong><br> You know When it comes to your workoutor running the last thing you want is some loose wireless headphones that come off as soon as you turn your head. The ear buds fit well and stay put well. Also the headphones is lightweight and portable.<br> <br> <strong>aptX - Superior Hi-Fi Sound </strong><br> Bluetooth 4.1 CSR technology and apt-X support deliver very good sound. Also this earphone has noise cancellation technology which reduces outside noises good qualify sounds really clear and have super bass great for music.<br> <br> <strong>Bluetooth 4.1 That Keeps You Going</strong><br> How far can you run? How long will you go before needing a break? No matter your performance?? these earphones are made to keep up throughout your workout and give you the boost you need. The Bluetooth 4.1 technology is easy on the battery and will provide up to 7 hou