Make sure that the unit you are attempting to connect to is in pairing mode under Bluetooth Settings. Press the power button located on far right outer rim of the speaker. If this is the first time connecting the unit, it will immediately go into pairing mode. HK Onyx 4 Studio should show up on your discoverable devices within 3-5 seconds. Once you choose the HK Onyx Studio 4 on your device, you will be connected and ready to experience that superior Harman Kardon sound.