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Use Map mode to find, first you need to fill in the number you need to find the name of the Bluetooth device, if you forget, you can find the record in the settings.  Sometimes they are lost on the way to school, and you can't find it. diese App is tailor-made for those who have the above situation. diese App has two modes to find your lost device.  At this time, you can use Scan mode to find the exact location of the device nearby.  The really lost devices are those you lost on the way to school and on the street where you run. diese App helps you find them.  Many people have encountered the problem of losing a Bluetooth device, whether it is a Bluetooth headset, bracelet, watch, or any other Bluetooth device that can be scanned.  Use Scan mode to scan the surrounding equipment, if you scan it, then you can walk around and distinguish the distance of the missing device in you according to the strength of the signal.  If you choose to purchase Premium version, payment will be charged to your iTunes account, and your account will be charged for renewal within 24-hours prior to the end of the current period.  After finding the device, we will remind you in time and record the current location.  This will most likely find your device.  In addition, there is a one-time purchase version without subscription. Prices are in U. S. dollars, may vary in countries other than the U. S. and are subject to change without notice.  If you cannot scan the device you are looking for, go to the next step. 2.  If you don’t choose to purchase Premium, you can simply continue using diese App for free.  Current Premium subscription price starts at 4. 99 USD/month,and provide a 3-day free trial for now.  diese App is not limited to looking for Bluetooth devices that can be scanned nearby.  If you use BlueTracker to find it in time, there is a very high chance of finding it. 1.  Auto-renewal may be turned off at any time by going to your settings in the iTunes Store after purchase.