NOTE :What cell phone can work with this product? 1. For iphone 4 4s 5 5s 6 6plus , it can use directly. Do need any seting or App. 2. For the following Android smart phone: For Samsung note2/3,S4,S5 ,G7109,G3588 For Coolpad Dazen Series For Xiaomi For Sony Z series For Huawei P6 P7 3X 3C Mate 2 G730 please set volume botton +/- of your phone to take photos. 3.For other Android smart phone which system Above 4.2.2, try to install an APP camera360, we do not promise it can work with this product, please well note before buy!