A:Answer Hi, thank you interest in our headphones. In order to set your headphones in Bluetooth (pairing mode), once they're turned off, press and hold for four seconds. The blue and red LEDs blink alternately. Enable the Bluetooth on your device, as well and select INSIGNIA NS-CAHBTEB02 from the list of discovered devices. If you need further assistance, do not hesitate on contacting us at https://www.insigniaproducts.com/contact-us
Deneb M. Insignia Support