Audio & Charge :This adapter splitter allows you to use Headphone and charging your device simultaneously,also support the phone call control. Excellent Sound Performance: Supports up to 48 KHz and 24-bit audio output,keep earphones sound quality with no compromise. Remote Control & Microphone : Supports remote control and microphone from Audio headphones. Plug & Play: Just insert your charger or earphones into the jack and then it plays, no App needed, no additional software needed. Upgrade Compatibility: Perfectly Compatible for10.3 or later, supports iPhone 8, iPhone 8 Plus, iPhone X, iPhone 7, iPhone 7 Plus.