For almost all headsets, this is done by starting with the headset power off, then pressing and holding the multi-function button (the button you press to answer a call) for a few seconds. First, a light will blink showing you that the unit is on (keep holding the button) and a few seconds later, the LED on the headset will blink in alternating colors (often red-blue, but this can be anything). The blinking lights indicate that the headset is in pairing mode. If your headset has a sliding on/off switch, slide it to the “on” position before pressing and holding the multi-function button.

If you’re using an iPhone, tap the Settings icon and look for a menu item called Bluetooth. If you see it there, your device is Bluetooth-capable. If it says “off” next to Bluetooth, tap it to turn it on. [3] X Research source Android users can tap the Settings icon in the app menu and look for Bluetooth there. If the word Bluetooth is the menu, your phone is Bluetooth-capable. Open the Bluetooth menu with a tap and flip the switch to the “on” position. [4] X Research source Users with Windows Phones will open the app list and select Settings to find the Bluetooth menu. If you see a Bluetooth menu, your phone is Bluetooth-capable. Open the menu to switch Bluetooth on. [5] X Research source If you’re using a Bluetooth-capable phone that isn’t a smartphone, navigate to your device’s settings menu to find the Bluetooth menu. Turn on Bluetooth in that menu.

Regular feature phones (non-smartphones) and older Android models may require you to scan for devices manually. If the Bluetooth menu contains an item that says “Scan for devices” or something similar, tap it to scan. If you don’t see any devices despite having turned on Bluetooth, your headset may not be in pairing mode. Restart your headset and re-enable pairing mode. Double-check your Bluetooth headset manual to make sure your particular headset doesn’t have a special process for pairing.

On the majority of headsets, this code is either “0000,” “1234,” “9999” or “0001. ” If none of those work, try the last 4 digits of your headset’s serial number (found underneath the battery, labeled as “s/n” or “serial number”). [6] X Research source If your phone connects to the headset without a code, it simply means that no code is required.