A 1kHz sine wave can be played.
Use it for test signals.
The sound will be heard for as long as you press the screen.
You can blow a whistle.Use it for sports game referees, practice coaches,...
Your smartphone or tablet will replace the call bell.Please use at the...
The digital clock is displayed on the full screen without a status...
Only Bingo game cards.Touch the number to change the color of the...
This is a brain training game that you have to choose the...
You can blow a whistle.Red Card and Yellow Card can be displayed...
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