Product name: iphone dual interface adapterWire core material: pure copperShell material: ABSLength: 10.0cmApplicable system: ios10 and aboveInterface type: Double LTNumber of interfaces: 2Signal to noise ratio: -95dB at 3.3VOutput power: 2x35mW@32Support functions: charging/listening to songs/voice calls/wire control (voice calls and wire control functions require the use of original Apple headsets)You can wear headphones while charging, which solves the problem of only one jack for Apple mobile phones.Built-in chip, high-fidelity sound quality transmission, no delay, no current noise when listening to songs.TPE material wire is resistant to pulling and will not break.Charging does not damage the phone and effectively protects the phone battery.The weight is only 5.5, and it is compact and easy to carry.