Try to make a Bluetooth Speaker with Raspberry Pi

I have an old model Raspberry Pi, Raspberry Pi Model B rev2, which I got five years ago. And I have a retired speakers. So I think, maybe I can make a bluetooth speaker system with this Pi.

I chaecked my inventory. Found two bluetooth USB dongles. I think it is enough. After googling, I found this one.

Raspberry Pi Bluetooth+Airplay Audio Receiver combo

Go though the steps, I also read the comments of it. I did the following.

Step 1: Preparing the Pi

Download Raspbian image here. I download Raspbian Jessie Lite, the latest one for now.
Transfer image to sdcard using Win32 Disk Imager following instructions on www.raspberrypi.org.
Insert sdcard and power up
Important! Expand file system to full 8GB capacity
Reboot
Login as user pi (password: raspberry). Please note that for the rest of this guide it is assumed that you are logged in as “pi”.
Update operating system and reboot:

sudo apt-get update
sudo apt-get -y upgrade
sudo reboot

Step 2: Installation

This script is from the comment of adenbeckitt. He modified the original script which is not compatible with Raspbian Jessie.

pi@raspberrypi ~ $ cd ~
pi@raspberrypi ~ $ git clone https://bitbucket.org/adenbeckitt/raspberry-pi-audio-receiver-install.git
pi@raspberrypi ~ $ cd raspberry-pi-audio-receiver-install/
pi@raspberrypi ~/raspberry-pi-audio-receiver-install $ ./runall.sh
Device name: RpiAudio

Step 3: Testing

From my cellphone, I can pair the Bluetooth dongle on my Raspberry Pi. Name of the device is RpiAudio, which I entered on installation.

The pin code is default 0000.

See attached screenshots