MUSIC IN TOTAL FREEDOM AND PERFECT CALLSUltrasound true wireless are wireless earphones with in-ear caps, featuring a case with a durable design. The built-in microphone in both earphones makes them the perfect choice both for business calls and sport activities. Thanks to the multi-function touch keys, you can manage music and calls directly from the earbuds. The case features a magnetic closure with a magnetic fixing of the earphones and this guarantees greater safety to the product. In addition to protecting the earphones from dust and scratches, the case allows you to recharge them anywhere and at any time: one charge guarantees up to 5 hours of audio playback. ULTRASOUND have the ENC function, a technology that reduces ambient noise while you're on a call, so you have a clear voice during your phone calls. Included in each package is a USB-C cable for charging the case.