After I connect the card reader with the keyboard. I set the card password. After swiping, the card reader buzzes continuously until the password is lost. This noise makes me upset. Many other controllers can access the LED light control line of the card reader. After swiping this card, the card reader light flashes continuously and prompts for the password. The buzzer does not always bark. I hope we can improve it too.

Hello, thank you for using the products of our company, set the card and the password to open, swiping card, the buzzer of the card reader will ring once, and then enter the password, Buzzer also makes a noise, if press the keyboard.