This is an app that adjusts the settings of SG220B &320B.
Device name setting: Name setting when searching for FingerBLE Setting the type of barcode that can be read: Select from 1D4 symbol, 1D&2D Auto mode scan speed setting: Adjusts the scan speed from 0 to 10 Barcode reading test: Turn on/off the barcode reading function test of the device after connecting FingerBLE Current battery level: expressed in battery% Check buzzer operation: check read/error/warning sound Buzzer volume setting: Select from Off, Small, Medium, Loud OFF Time Setting: Set the time to turn off when FingerBLE is not connected to the App