Can I use Stethophone Pro without earphones or with wired earphones?

Using earphones allows you to listen to the sound to find a better spot for recording or listening to chest sounds, just like when you use a regular stethoscope. When you hear your heartbeat, this is a good spot. Without listening to the heartbeat, it would be harder to ensure you picked the good spot. Recording or listening in real time with Stethophone Pro will only work if you use Bluetooth or wireless earphones because you need to press the bottom of the phone to your chest; hence it should not have cords. However, a healthcare professional can use both wired and wireless earphones to listen to recordings in Stethophone Pro.