6s Smart Sound Insulation Earmuff Noise Concelling Reduction Active Headphone

Feature: 1. Foldable headband for easy carrying and storage. 2. Suitable for workers in noisy environments. 3. With a unique smart chip and NRR20DB, it can work effectively. 4. It is powered by 4 AAA batteries (not included). 5. The wide head frame and thick sponge effectively reduce the pressure users wear. Specification: Specification: Condition: 100percent Brand New Item Type: Noise Concelling Earmuff Material: ABS + Sponge Color: Black, Military Green (Optional)Type: Earmuff NRR: 20db Battery: 4 x AAA Battery (Not Included) Size of a Single Earmuff: Approx. 11 x 8 x 2cm/ 4.3 x 3.1 x 0.7in Style: Foldable Package List: 1 x Noise Concelling Earmuff Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.