This is an accessory specifically for the Loop. It's a silicone part that reduces noise by 5dB. Please use it with the wider surface facing outwards. The outer packaging will be disinfected before shipping. Option for anonymous shipping: ¥694. Related items: #kii_audio_ (¥100 discount for each additional item when bundled) ★ No price negotiations ★ First come, first served (for immediate purchase) Loop Mute