Bluetooth headsets recognize several devices that need to be connected, and unless otherwise prompted, they will always try to connect to the last device used. Each product has a different way to activate the Bluetooth function, but within Android or Apple operating systems, the method of operation is almost the same. The pairing method for each system is as follows:

Android
1. Go to Settings>Wireless and Network>Bluetooth Settings
2. Check the checkbox next to Bluetooth to turn it on
3. The Bluetooth device list will be displayed
4. Click the Bluetooth headset in the list to connect

IOS
1. Go to Settings>Bluetooth
2. Move the Bluetooth slider to the "On" position
3. The Bluetooth device list will be displayed
4. Click the Bluetooth headset in the list to connect