Unique Housing Design The housing design features a stylish look and acoustic features to maximize the sound range of the Amplitude X90. Silicone Tips The Amplitude X90 comes with three (3) different Silicone Tips to comfortable fit your ear shape and size. In-Line Microphone The inline microphone on the Amplitude X90 allows for easy conversations on your device whether using it on a mobile phone, a video call on a computer, or recording yourself on a tablet. In-Line Control The Amplitude X90 features include control to allow you to answer call by pressing the button while being used on a mobile phone. The in-line control button can also be used to play/pause a song when used in a device that supports inline control with music. Sleek Flat Cable The flat cable design in the Amplitude X90 helps in reducing cable tangles as well as provide a sleek and modern look for your lifestyle.