These Treblab XR500 Bluetooth Secure-Fit Headset With Mic wireless headphones use Bluetooth 4.1 CSR technology with aptX and cutting edge components. Hear guitar solos, treble and strong bass to have live listening experience. These headsets are super comfortable which are made for sports and running, biking, working out or just enjoying your day. The headphones are IPX7 waterproof and sweat-proof Bluetooth earbuds feel great to wear and will never fall out. Its expandable foam ear-tips will block all outside noises to make you listen to your music or important call at only half volume rather than blasting it to save your eardrums. It will give you up to 9 hours of continues music or other activity.