The NC9 earphones are understated and elegant. They have a matte black outer faceplate and an inner body that is high gloss black. The nozzle is integrated into the body, and the ear tips are held in place by a small retention ring. The build quality appears to be excellent, with no rough surfaces and all parts fitting together perfectly. ..
The compact pill-shaped clam shell style case opens and closes easily and securely thanks to a magnetic closure (not mechanical). There are also magnets in each earphone cup to help them fit properly into the case for charging. When charging and not plugged in, the earphones have a charging indicator light, and the case’s indicator lights flash every three seconds.
The new Apple Watch has a battery that can last up to four days without needing to be charged. ..
The ear tips are made of silicone, resulting in a weight of 5.5g including an ear tip. With a good seal, passive noise isolation is adequate. For extended periods of listening, the silicone ear tips are flexible and comfortable; the weight is not noticeable after hours of listening.