Wireless Hearing Protection Earmuffs, Noise Reduction, Comfortable Long,Lasting

MATERIAL: The earmuffs are made of TPU+ABS material, which is durable and has a long service life. 5.0: The noise cancelling earmuffs use wireless 5.0 connection, the connection is and more stable. MULTIFUNCTIONAL: The earmuffs can answer, reject, hangup functions. External sound input jack no power supply required.