High Technology In Ear Headphones A must-have junior set for audio novices,audiophile,music enthusiasts and etc,consturected in high build quality and HiFi clear sound,with more air and separation between instruments. Delivers an extremely accurate listening experience with unsurpassed dynamic power and clarity from deep bass to sizzling highs . Bring joy and relief to your listening experience. A good companion for workout,gym,cycling,game,show and etc. Comfortable and snug Fit,perfect for workout Suitable Music Type:Jazz, Pop, Rock and others. High Performance Earphones ZSN Pro X is energetic earbuds headphones with boosted rapid and detailed bass, engaging mids and lively treble.A fully balanced and ultra-realistic soundstage,creates long-lasting comfort and immersive audio experience. Removable wire & 2 PIN interface The 2-PIN interface allows you to change or upgrade the cable for it at any time. It can also be combined with the Bluetooth cable to change it into a Bluetooth earbud in seconds. Ergonomic Design rgonomic fit design provides you comfortable and stable wearing experience.They're more comfortable and less likely to fall out, you can have more joy when listening music. How to used 1.Correctly distinguish right and left headphone."l"for left ."R"for right. 2.Straight headphone inserted into the ear,correct wear,confortable wear,good sound insulation performance. 3.Fix the headset wire behind the ear. 4.Press and hold the headset panel to adjust the seal. 5.Adjust earphone wire and fix earphone. 6.plug the headset plugs into the play-back device and use the device to adjust the volume before the headset is plugged into the device.