Features: brand new and high quality 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. 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. Fully Optimized Stage Customization Performance: Powerful dual magnetic circuit dynamic unfhighly restore the live atmosphere. 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. Specifications: Headphone Type: In-ear Headphones Wearing Method: In-ear Plug Diameter: 3.5mm Plug Type: L-bend Type Whether Wireless Headset: Wired Headset Is There a Microphone: Yes Sounding Principle: Moving Coil Frequency Response Range: 20-40000 (hz) Impedance: 16 (Ω) Sensitivity: 105 (db) Distortion Rate: 1 (%) Wire Length: 1.2 (for m) Horn Diameter: 11 (Φmm) Earplug/earmuff Material: Silicone Sleeve Headphone Cable Material: TPE Color: Colorful, Black Line Length: approx. 1.2m/47.24inches Net Weight: 20g/0.04lbs Package Includes: 1PC Sports In-ear Wired Plug-in Headset 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.