- The penny whistle or tin whistle is a small, six hole wind instrument which can usually play two octaves - the trick is not to blow too hard
- Whistles can be of all metal (loud and strong), all plastic (mellow) or all wood construction, or a combination.
- Tunable whistles have a movable mouthpiece which can be slid slightly to obtain the best possible accurate tuning in any circumstance
- Susato, Shaw, Generation and Dixon brands available