Jabra Speak 510 Faq page 3

2. Turn on Bluetooth on your mobile phone, and then select Jabra Speak 510. Enter "0000"
(four zeros) if you are asked for a PIN.
To pair your Jabra Speak 510 with a Bluetooth headset, follow these steps:
1. Press and hold the Bluetooth button for 8 seconds until it flashes green.