HP Bluetooth Pendant Headphones - Manual (Page 16)

3. Press and hold the multifunction button (1) on the Bluetooth audio adapter for 3 seconds to turn
on the adapter and begin pairing.
A blinking blue adapter status light (2) indicates that the adapter is turned on.
4. Plug the earbuds into the audio-out (headphone) jack on the Bluetooth receiver.
12 Chapter 4 Using the earbuds with the Bluetooth audio adapter (select models only)