Yes, AfterShokz Aeropex headphones are suitable for phone calls. They are designed with dual noise-canceling microphones that help reduce ambient noise and ensure your voice is clearly heard during calls. The open-ear design also allows you to maintain situational awareness, enabling you to have conversations without losing touch with your surroundings. The bone conduction technology in the Aeropex ensures that you can hear the person on the other end of the call clearly, even in noisy environments. The Bluetooth 5.0 connectivity allows for seamless pairing with your smartphone, making it easy to answer and make calls directly from the headphones using the built-in controls. While the Aeropex may not provide the same level of noise cancellation as dedicated over-ear headphones with active noise-cancellation technology, they are still a reliable and convenient option for phone calls, especially during outdoor activities or in situations where you need to stay aware of your surroundings.