Features: 100% brand new and high quality In-ear earbuds are secure fit and sweat resistant for sports activities. You can wear headphone for sports running, cycling, gym, mountain biking, skateboarding, and hiking. The air flow is controlled by the precise cavity structure to enhance the dynamic performance of the mid frequency. The voice is sweet and warm, retaining more instrument details, forming a clean and balanced sound. Effectively lsolate external noise wearing the earphones correctly can effectively isolate the noise interference of about 26dB from the outside world, and you can still enjoy good sound quality in noisy crowds. With bluetooth-compatible cable can be upgraded to bluetooth-compatible earphones 2Pin upgradeable cable design unlimited upgrade possibilities The 0.75mm standard gold-plated pins, it supports the replacement of cables to achieve different levels of tuning, adding more possibilities for sound quality upgrades. 5N OFC oxygen-free copper core high-reduction lossless signal transmission, meet HiFi needs the new double flat cable is effectively anti-winding, anti-pulling, and has a longer service life. One-click control high definition condenser microphone support singing, call, meeting,online class. Package Includes: 1x In-Ear Stereo Headset Specifications: Headphone type: in-ear headphones Headphone output source: HiFi Plug diameter: 3.5mm Plug type: L-bend type Pin type:0.75mm Sound principle: moving coil Sensitivity: 115dB Frequency response range: 20Hz-40kHz Material:Metal + Plastic Length:Approx.125cm/49.21inches Color:Black/Silver Type: Standard/with Mic Compatible with GK G5 note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.