Sound Leadership & Voice Clarity<br />Due to CVC6.0 noise cancellation technology・ the bluetooth headphone intelligently filters out background noise for perfect speech transmission in busy and noisy environments. Compared to Bluetooth 4.0・ the latest Bluetooth 4.1 technology features faster & stable signal transmission・ clearer sound quality and lower power consumption.<br /><br />Lastest IPX7 Waterproof Protection<br /> wireless earbuds upgraded IPX7 sweatproof rating・ prevent the headphones damaged from ordinary splashing water and rain. Keep the earphones working well no matter you re getting drenched in sweat after a grueling workout.<br /><br />Longest Play Time <br />Up to 4 hours of continuous talking / music time and up to 150 hours of standby with a single charge・ so you can enjoy long lasting music and less time charging. Wherever your day takes you・  keeps your music.<br /><br />Package : 1 pair headphone