Samsung Galaxy Tab A - Screen Lock

Device Settings 226
2. Tap On/Off to enable each option:
 Touch sounds: Play tones when you touch or tap the screen to make selections.
 Screen lock sounds: Play a sound when you unlock the screen.
 Charging sound: Play a sound when a charger is connected.
Key-tap Feedback
Play tones when the keyboard is tapped.
1. From home, tap Apps > Settings > Sound .
2. To On/Off to enable each option:
 Keyboard sound: Play a sound when the Samsung keyboard is tapped.