The QCY T13x True Wireless Bluetooth Earbuds are equipped with the latest Bluetooth technology. Say goodbye to cables and discover the new standard. Annoying cable clutter is replaced by perfect performance and excellent stereo sound, both indoors and outdoors, regardless of the weather. Enjoy up to 8 hours of music, or even up to 30 hours with the charging case. Four built-in microphones also allow for crystal-clear phone calls. The QCY T13x earbuds connect automatically as soon as you take them out of the charging case. The latest chip technology ensures deep bass, clear highs, and the best sound quality. On the go, the wireless earbuds are always well stored. With the practical charging case, the earbuds can not only be stored but also charged, no matter where you are.