After fitting the preferred ear tips, we started listening to different YouTube videos, podcasts and even took some phone calls. While using the Razer Hammerhead True Wireless Pro to take phone calls, were heard by the person on the other side as we would be using the phone on speaker, but the quality has improved quite a lot after performing the latest firmware update. While you cannot expect to have the same amount of bass as when using a pair of on-ear headphones, these can deliver clear voices with good mids. Thanks to the low weight and lack of cables, the headphones are very comfortable to wear, even during workout sessions, having IPX4 water resistance.