2 in 1 Splitter adapter provides two ports-one for charging and the other for listening to music which allows you to simultaneously listen to music and charge your device. Adapter cable supports simultaneous charging and audio output audio. Small style is convenient for your hands-free using, easy to carry around and suitable for your daily life or leisure time, portable and convenient to use anywhere anytime. You can put it into a wallet, backpack, handbag, bags, schoolbag and easy to carry around, allows you to enjoy music and charge your device. You can use this mini phone charger adapter 2 in 1 while using a 2 mm thick phone case.