the frequency for focus memory and concentration

13:39

13:39

6:05:49

3:00:21

5:02

24:50

1:34

کوتاه

5:10

4:04

4:04

7:30

17:43

14:22

15:15

8:03

16:55

23:57

2:18

23:57

1:22

29:58

2:27

27:52

7:05

58:30

کوتاه

4:43

4:23

2:44:08

3:02:52

1:02:46

2:00:25

1:01:01

1:02:46

2:59:57

16:28

4:55

51:24

8:09