Fones de ouvido com espuma viscoelástica, inseridos no ouvido para isolamento acústico e redução de ruído. Protetores auriculares com retorno lento, diâmetro interno de 4,5 mm.

• Memory Cotton: The earphones are made of memory cotton, which means they will fit comfortably in your ears and won't cause any discomfort or irritation • Slow Return Earmuffs: The earmuffs are designed to slowly return to their original shape, providing a comfortable fit that won't cause any discomfort or irritation • 4-5mm Inner Hole :The earphones have a 4-5mm inner hole, making them compatible with a wide range of devices including smart devices phones, tablets, and laptops Description: Product Name: Memory Foam Earplugs Using headphones: 4.5 inner diameter in-ear headphones Size: 13/0.51mm/in, inner diameter: 4.5mm Features: Comfortable and breathable, noise reduction and sound insulation, not easy to slip off Notice: This product is not waterproof and can only achieve moderate sound insulation effect, but cannot achieve complete sound insulation