These eartips compatible with SENSO, ZEUS, Otium, Hussar sport bluetooth headphones, these are good replacement for the original when the original one is broken or lost, with these products, you have no need to worry about the damage or losing of your original Eartips, And it will give you more backups. <br><br> <b>Specifications: </b><br> Color: Clear black + red <br> Size: small size , medium size, large size <br><br> <b>Package includes: </b><br> 2 Pairs of small size<br> 2 Pairs of medium size <br> 2 Pairs of large size<br><br> Notice: Earphone is not included<br><br>Note: these ear tips caliber that connect in ear headphone is 3.8mm, fit for 3.8mm-5.1mm in diameter headphone that connect part diameter.