[Multifunction Control]: These wired headphones can be used for hands-free calling while driving or music streaming, without needing to be controlled via phone or electronic device; built-in remote control, with play/pause, hands-free calling, next/previous music function. [HiFi Stereo Noise Cancelling Design]: These headphones feature an ergonomic and ultra-efficient in-ear design - lightweight. The in-ear design of these smartphone headphones reduces background noise, broadens the frequency range, reduces distortion, and ensures clearer sound and the best listening experience. [Wide Compatibility]: The headphones are widely compatible with iPhone 12/ 12 Mini/12 Pro/12 Pro Max/11/11 Pro /11 Pro Max/13/SE/X/XS/XS Max/XR/7/7 Plus/ 8/8 Plus, Supports all iOS systems. [Bluetooth Connection]: New 2022 pop-up headset: you must first turn on Bluetooth on your phone, then connect the headset to your iPhone, a few seconds later a pop-up window will appear and you must click \"Sign in with iCloud\". (Second use connects automatically)