Open a new document in photoshop
Size 300 x 300 pixels
Color : dark grey - #303030
Select Rounded Rectangle Tool . Set the radius to 15 pixels, and start drawing a simple shape
Go to Layer > rasterize > Shape
Then Apply the following layer styles
This is the result
Now comes the funny part
Select Elliptical Marquee Tool
Set the following settings
Then add the selection like in the following image
Be sure you have the " Shape 1 " selected , then hit the delete key from your keyboard
Move the selection to the left with the left arrow key
Now white the same tool , change the settings like in the next image
Then with the subtract from selection button pressed, add the same circle near the initial one
After you will release the mouse button you will have this result
Now hit one more time Delete key from your keyboard, then move the selection one more time to the left.
Now go to Select > Modify > Contract, and choose Contract by 1 pixel. press ok, Then press one more time Delete key
Then Press CTRL+D to deselect
Select rectangular marquee tool
Use the following settings
Then place a selection on the button, and hit Delete key
Try to make something like me
Then select the Rounded Rectangle Tool and make a simple rectangle ( keep the same radius size - 15 Pixels )
Then rasterize the shape ( go to Layer > rasterize > shape )
Now go to Select > Load selection
Select the Shape 1 layer and hit delete
Then hide the Shape 2 layer
This is the result
Select the background layer, then grab Rounded rectangle tool, and make another shape
Then apply the following layer styles
This is the result
Then with the type tool , add some text, and use the same layer styles as above
This is my final product

