Hello all!
The old problem is fixed by me.
I want to introduce this solution to all owners of this multimeter.
Solution:
1. Remove the standard buzzer.
2. Insert inside simple loudspeaker 8 ohms.
3. Connect this liudspeaker over resistor 200 ohms.
I apologize if I created a topic in vain, but the forum engine said that it would be better to do it this way.