Compatibility:These case ear tips kit only compatible with Soundcore C30I/Soundcore C40I by Anker Open-Ear Earbuds Clip-On Headphones, Not for other models. High Quality Material:Crystal TPU material shows off the original look and colors, protect your headphone from scratches and drops. Portable Carabiner:Each clear case comes with a metal keychain clip and a Cleaner Kit, easy and convenient to carry your earbuds anywhere,easy to clean your earbuds. Easy Installation:Come with highly sticky doulble-sided adhesive design avoid losing your earbuds when you out the door,support charging with cable no need to remove the case cover to charge your buds. Warm Tips: Package include 1 x TPU Case, 1 x Keychain/Carabiner,1 x Cleaning pen(NOT INCLUDE EARBUDS). We take care of all quality-related issues with a REPLACEMENT, so if you have any problem, please contact us without hesitation. Designed specifically for Soundcore C30I/Soundcore C40I by Anker Open-Ear Earbuds Clip-On Headphones.