Headset With Microphone Wired Headset, Subwoofer Wire-controlled Call, Mobile Phone Computer Universal Headset Intelligent Noise Reduction Features: This is a circular, pressure earmuff designed specifically for ear size. The earmuff is wrapped in a soft and breathable protein leather and is covered with an elastic and suitable outer layer of space memory cotton, making it very comfortable. Carefully selecteds high fidelitys dynamics 40MM highs configuration speakers, this type of speaker can perform a very balanced triples frequency effect, with excellent restoration of low frequency strength, mid frequency resolution, and high frequency brightness. The earphones are equipped with hidden stretchable structures on both sides, which can simultaneously pull out a maximum length of 3CM. This can meet the needs of the vast majoritys of people with different head circumference sizes to wear, designed with care. The foldable shoe juices adopts a portable and foldable design, saving you space and making it easy to carry, making it very convenient for both home and travel Designers have taken acoustic design concepts from music trends around the world and designed a series of products with industrial design capabilities based on current trends Product Description: Product name: Wired headphones Color: Black Material: PC Horn diameter: 40mm Impedance: 32 Ohms Sensitivity: 102 ± 3dB/mW Frequency response: 20-20000Hz Pin type: 3.5mm Line length: 120cm Package Size: 6.14"L*6.1"W*3.27"H/15.6*15.5*8.3cm Gross Weight: 0.53lb/239g The Package Include: 1 x Wired headphones 1 x Audio cable