5 Pairing several devices Pairing with several Bluetooth devices The headphones can connect with two devices at most. A mobile phone with HFP profile; and a device with A2DP profiles. If you want to pair two Bluetooth devices, please refer to the following steps. 1. Firstly, pair the headphones with the Bluetooth adapter 2. Disconnect the Bluetooth adapter from the iPhone or iPod 3. Pair and connect the headphones with the mobile phone 4.