Follow the below mentioned steps to pair your Samsung HM1100 Mono Headset with Samsung GT-S7562:
1. With the headset powered on, press and hold the Talk button until the blue indicator light stays lit.
2. If you power on the headset for the first time, it will enter into Pairing mode immediately.
3. On your phone, in the application list, select "Settings" and then "Bluetooth" and then "Scan".
4. Select the headset (HM1100) from the list of devices found by the phone.
5. Enter the Bluetooth PIN (0000, 4 zeros) to pair and connect the headset to your phone.
Now you should be able to listen to music through your headphone.