BikeBell

Connect the BikeBell to your Android smartphone using this app.
The alarm functions are controlled by the BikeBell app.
There are three alarm system modes available. Optionally, the motor support can be switched off automatically in all modes for pedelecs. In cell phone mode, the signal range between smartphone and BikeBell in an open area is approx. 100 meters.
Decide for yourself how you want to be alerted and what should happen in the event of an alarm.
The stand-alone modes work after you have activated them with the BikeBell, regardless of the mobile phone. Whenever the motion sensor detects a potential theft attempt, the loud BikeBell alarm sounds for 25 seconds. The alarm system can be switched off at any time using the BikeBell app. In stand-alone automatic mode, the alarm system switches itself on and off depending on the distance between the bike and cell phone. The distances can be freely configured in the BikeBell app. The alarm is triggered reliably and reproducibly by the BikeBell's motion-sensitive technology, which is attached to the outside of the handlebar. This positioning creates a much greater deflection than with frame-mounted alarm systems. This makes the BikeBell alarm triggering much more robust.
Compose your own BikeBell sounds with the app.
Set up to 5 different BikeBell / Handy songs.
Have the sounds output on your smartphone or on the BikeBell.
Customize what type of bike you use.
Give your bike a name and let the BikeBell app greet you at the start of your tour.
You can find everything else under
https://www.bikebell.de