KPTEC Portable Speaker with 4000mAh Power Bank Battery Charger - Yellow This is a little 3 in 1 power bank, speaker and phone stand. CHARGE YOUR CELL PHONE: Throw charger in your bag and you will always have a backup to charge your phone. PLAY YOUR MUSIC: Take out the product top cover, inset the two 3.5mm audio plugs to the audio port of port of the product and of the phone.LED light turning blue means the connection is successful.Adjust the volume and press the play button on the phone,he product will recognize the audio signal automatically and play. PHONE STAND: Enjoy your phone function with this adjustable stand, adjusts to virtually any angle you prefer by rotating it slightly. Compatible with all phones and devices with USB port and 3.5mm Aux, for Apple iPhone 6//6S/6S Plus/5/5S/5C/SE/4/4S,Samsung Galaxy S 7 Edge/S 6 Edge/S 5/S 4/Note 4, LG G3, MP4/MP7.