Perfectly Fit: Specially designed for Denon PerL Pro True Wireless Earbuds not compatible with other device All Round Protection:The cases are made of premium silicone material offers which is skin-friendly and harmless, It feels extremely silky in your hands and full protection from scratches, accidental drops, shocks and bumps without adding any bulk. Easy To Use: No need to remove the case for wired or wireless charging. The bottom dust plug design keeps the charging port clean and sealed when not in use Portable Keychain Accessories:Additional carabiner keychain for easy carrying, which can be fixed your earbuds case on a handbag or backpack.computer backpack The Package Include: -You will get 1 x case cover,1 x Keychain,1 x cleaning pen, 1 x Lanyard,You can hang in any place you like, and don't have to worry about earbuds losing.（note：earbuds is not included.) Specially designed for Denon PerL Pro