How is it that Bluetooth automatically disconnects after scanning the bar code?

The battery is low and the distance is too far. Scan the barcode and Bluetooth will automatically disconnect because:

1, low battery. If the battery of the code scanner is low, the connection will be disconnected. You can replace the battery or charge it to solve this problem.

2. The distance is too far. The transmission distance of Bluetooth technology is limited. If the distance between the device and the code scanner is too far, the connection will be broken. When in use, it will be improved to make the equipment closer to the code scanner.