BOSCH BES3 CONNECT MODULE BDU38YYBosch ConnectModule for Bosch Gen5 motors from model year 2025. It's a GPS tracker for e bikes. If the eBike is turned off, the eBike Alarm automatically activates. It reacts to slight movements with alarm signals. If the bike moves more significantly, a message is sent to the smartphone, the tracking function starts, and the bike's position can be tracked in the eBike Flow app. The ConnectModule is a mandatory technical requirement for the eBike