Yes, there are ways to connect the Beyerdynamic DT 770 Pro to an iPhone or MacBook.

### Connection to an iPhone:
1. lightning-to-headphone adapter: Since iPhones no longer have a classic headphone jack, you need a lightning-to-headphone adapter. This adapter makes it possible to connect the headphones via the Lightning connection. It is recommended to use the official adapter from Apple to avoid compatibility issues.
2. cable adaptation: The DT 770 Pro usually have a 6.3 mm jack plug. If you use an adapter for the Lightning connector, which also allows a 6.3 mm to 3.5 mm conversion, you can connect the headphones directly.

### Connection to a MacBook:
1. 3.5 mm jack adapter: If your MacBook has a 3.5 mm jack plug, you will need a 6.3 mm to 3.5 mm adapter to connect the headphones.
2. USB audio interface: Alternatively, you can use a USB audio interface that connects the headphones to the MacBook via USB. This often offers better audio quality and more flexibility.

In both cases, you should note that the DT 770 Pro are available in different impedance versions (e.g. 32 Ohm, 80 Ohm, 250 Ohm). The 32 Ohm and 80 Ohm versions are more suitable for connecting to iPhones or MacBooks as they require less power and can therefore be driven more easily by the devices.