Features: brand new and high quality Active Noise Cancellation: Isolate the sound and listen to it, using a dedicated noise reduction chip, through receiving and analyzing the additional noise, the opposite signal is generated in the earphone to cancel it. Shocking Sound Quality Experience: Feel the shocking sound quality experience, can analyze the audio excellently, and present the original sound. Small Enough: Wear it for a day without getting tired, light per ear, in-ear design, no weight-bearing feeling. Fully Optimized Stage Customization Performance: Powerful dual magnetic circuit dynamic unfhighly restore the live atmosphere. 3. 5mm Headphone Plug: Powerful and compatible, 3.5mm universal plug design, no matter the computer tablet can be easily dealt with, desktop computers, laptops, tablets, mobile phones. Specifications: Product Name: Wired Headset Sensitivity: 112db Impedance: 23 Frequency Response: 20-20000hz Drive Unit: 8mm Plug Type: 3.5mm Maximum Power: 5mw Features: Universal, In-ear, Stereo, High-fidelity, with Microphone Cable Length: 1.2m Material:TPE+Metal Color: Red,Purple, Green, Black, White Product Dimension: approx. 1.2m/47.24inches Net Weight: 50g/0.11lbs Note: Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 X Wired Headset 2x Pairs of Ear Cushions 1 X User Manual