How can I make "make" to place objects in other directory?

[Joelito]

This is my makefile structure:

# Simple make
# Made with geany

CC = gcc
OBJS = funcs.o main.o
OUT = gtk-sample
GTK_PATHS = `pkg-config --cflags --libs gtk+-2.0`

$(OUT) : $(OBJS)
		$(CC) -Wall $(OBJS) $(GTK_PATHS) -o $(OUT)
		
funcs.o : funcs.c
		gcc -Wall -c funcs.c $(GTK_PATHS)
		
main.o : main.c
		gcc -Wall -c main.c $(GTK_PATHS)

clean :
	rm *.o $(OUT)

The files are like:
~/coder/app/main.c
~/coder/app/main.h
~/coder/app/funcs.c
~/coder/app/makefile
~/coder/app/main.o
~/coder/app/funcs.o
~/coder/app/gtk-sample

What I need is something like this:
~/coder/app/main.c
~/coder/app/main.h
~/coder/app/funcs.c
~/coder/app/makefile
~/coder/app/bin/main.o
~/coder/app/bin/funcs.o
~/coder/app/bin/gtk-sample

Thanks for any tips