Excellent condition Sennheiser CX400BT TW1 Thank you for viewing! This is the Sennheiser CX 400BT wireless earbuds. I purchased these and have hardly used them, storing them at home. How about using them for running, exercise, or your private time? ⸜( ´ ꒳ ` )⸝♡︎ The condition is very good, and there are four sets of ear tips, sizes XS to L! The M size is currently attached. *The other ear tips are unused and will be provided as they were when purchased. You can launch the Sennheiser app and connect to customize them! It's convenient because you can customize them to your liking♪ ★Please understand that these are not new.