This is an accessory specifically for Loop. It's a silicone part that reduces noise by 5dB. Please use it with the wider surface facing outwards. The outer bag will be disinfected before shipping. Change to regular mail: 599 yen. Related items: #kii_audio_ (100 yen discount for each additional item included in the tag) ★No price negotiations ★ First come, first served (for immediate purchase) Loop Mute compatible product