The Point Source Audio headband sizer allows you to perfectly adjust the CM-i3 and CM-i5 in-ear monitors for maximum comfort and sound quality. With five included pairs of memory foam ear tips in different sizes, you'll find a custom fit to suit your ears. The included carrying case lets you keep everything organized in one place for quick changes on stage or in the studio. Designed for in-ear monitor users, the headband sizer gives you an unparalleled level of control over your monitors' fit and sound. Experience your CM-i3 and CM-i5 in-ear monitors like never before with this headband sizer.