When travel or lost your way then check your direction by LED compass. Use this compass for select direction of your furniture and checking horizontal level. Calibration notification icon will help you keep compass in high accuracy. High-definition and simple graphic design makes high precision and battery efficiency. And compass's smooth and natural rotation is looks like real compass. Features:- Show calibration notification- Google map service- Display horizontal level- Display device slope- Display magnetic field strength- Display true heading- Display latitude, longitude- Display current location. CautionsCheck your devices that isn't being affected by a magnetic objects or not. Maintain magnetic field strength between 30~60? T as possible. CalibrationsCalibration icon indicates sensor accuracy. green means excellent, yellow means is not bad but calibration may be needed. If icon turns into the red inverse exclamation mark, you better calibrate compass instantly. Waving your device several times in a figure of 8 motion correctly. If you can not solve it in this way, rotate your device along 3-axis many a time. This app includes ads banner on the top screen.