high pitched

beeping

high pitch

tap

type in

typing beep

type pass

enter passcode

sequence code

password entry

dial passw

key pad

key input

select digit

security system

protect

digital protection

psw secure

numeric lock

lock

unlock

unlock device

mobile phone

touch screen

press button

press numpad

press

select

selecting

authorize

touchscreen

authorization

digitally enter

enter combination

num dial

dial

keyboard enter

secure door

safe

open close

secure

electronic safety

keypad beep

access number

vault