Breathable: Single layer open eardrum head, breathable, small in size, light in weight, easy to carry and store, prepare to use. HIGH QUALITY MATERIAL: domes are made of soft silicone material, comfortable, breathable and light, easy to carry and store, which can be worn comfortably all day long, with good ibility for long term use. Breathable: Single layer open eardrum head, breathable, small in size, light in weight, easy to carry and store, prepare to use. ANTI-STATIC: The closed eardrum is anti-static, wear it for a long time, the ears will not be damaged by static electricity, you can use it with confidence. Can be used in behind-the-ear hearing ai, hearing ai, pocket hearing ai and loupeakers. Anti Static: Anti static, wear it for a long time, there will be no static damage to your ears, you can use it with confidence.