KEY POINTS WHEN USE ZERO There are several tips for you when using the product: 1. If you use phone case, and thickness of the case is less than 5mm, ZERO can work normally; if it is greater than 0.8mm, we recommend to remove phone protective case when you use ZERO Translator 2.This product is only compatible with Android TYPE-C and Apple phones. If your Android phone interface is MICRO-USB, ZERO can’t work with this kind of phone. If insist on using ZERO with adapter, it will affect performance of the product 3. This product is an innovative translation product, so please use it according to the angle requirements in the manual