We recommend to use headsets with microphones that can be located close to the mouth in order to get the best audio input for your listeners.
For simultaneous interpretation
This Jabra Headset is light but works really well:
For Guided Tours
For tour guides we can recommend this Jabra headset.
With only one ear covered, you can still hear everything around you.
Simple smartphone headsets
You can even simply use your standard smartphone headphones. But please be aware that the microphone might pick up quite a lot of background noise. It is crucial to keep the microphone close to your mouth, therefore the options above are usually the better choice.