HiFi High-Quality Sound Stereo equipped, shock-resistant ring, high-quality wireless calls, and music listening are also enjoyable. The sound field is wider, with balanced three-frequency sound, detailed and balanced sound quality, and a more immersive experience. 【Excellent Compatibility】 3.5mm international standard interface, built-in Apple-certified chip, automatically upgrades the Android system. Compatible with iPhone/iPad/PC/Android smartphones, Switch, Microsoft Surface Pro/Go/Laptop/Book, tablets, etc. with a 3.5mm jack. Built-in microphone and remote control. During music playback and calls, use the operation buttons to perform basic functions. (Note: Remote control functions can only be used with smartphones) Volume +, Volume -, Music (Short press to play/pause music. Press the button three times during music playback to go to the previous song, and twice to go to the next song.) Phone: (When connected to a smartphone, short press to answer an incoming call, long press to reject a call. During a smartphone call, short press the button to end the call.) Unlike conventional round earphones, these are designed to fit various Japanese ear shapes, providing a comfortable fit and reducing ear pain. The ear tips are made of soft rubber material, so you won't feel heavy even after wearing them for a long time, minimizing the burden on your ears. Using high-quality materials and adopting a professional design, they can be used for long periods while providing excellent usability. Unique magnetic design, magnets on the earphone covers, can be stored compactly when not in use, and are less likely to tangle. Ergonomically designed and carefully crafted to fit the curves of the ear, providing a comfortable fit without feeling pain. Lightweight and long-lasting earphones, easy to use, very convenient for various situations such as running, home, work, and travel.