Multi FunctionThe 4 in 1 headphone splitter support listen to music and charge your Phone at the same time, audio headphone jack (support music & call & wire control) + dual 3.5mm headphone jack (only support music) + charging port (only support charging). Note: audio headphone jack(music & call & wire control) and 3.5mm headphone jackcan not be used at the same time.Lossless Audio OutputThe headphone splitter uses 100% copper core to provide lossless digital sound quality, allows up to 48 KHZ, 24 bit audio output, keep original headphone sound quality, enjoy stable and lossless audio experience for entertainment.Fast ChargingThe dual headphone adapter is also designed with 2.4A quick charge capability, the charging speed is increased by 1.5 times. No worry about run out of battery when listening to music or watching videos.Wide CompatibilityThe 4 in 1 audio and charge adapter is compatible with Phone 12 / 12 Mini / 12 Pro / 12 Pro Max / 11 Pro / 11 Pro Max / XR / XS / XS Max / X / 8 / 7 / 6 Plus, Pad, Pod and any cellphone device that runs iOS 9.2-14 system, don't worry about iOS system updates. No need App, plug and play.