Hybrid Earbuds In 7 Sizes - Sony MDR-NC300D Product Information

4-2 Hybrid Earbuds in 7 Sizes
The hybrid silicone earbuds use silicone in a combination of two hardnesses. The hard core maintains the shape of the sound exit
and prevents deterioration of sound quality caused by crushing of the tip. The soft exterior allows better molding to the ear canal,
providing a secure fit and wearing comfort for extended listening. Seven types of earbud are provided to suit different shapes of ear.
Low hardness silicone
High hardness silicone
Section of earbud
Earbud size
Small  Diameter  Large
–
High
S
Height
(orange)
SS
Low
(red)
ML LL
(blue) (purple)
M L
(green) (light blue)
MS –
(yellow)
19