Tone Enhancers are another innovation from RT Shepherd and Sons (Scotland) Ltd. Developed in 2000  in partnership with Robert Mathieson, former Pipe Major of House of Edgar Shotts and Dykehead Pipe Band.

The original Tone Enhancer provided another solution to unsteady blowing, holding a constant tone in the drones and preventing excess moisture reaching the drone reeds.

A bag with a Zip is preferable for ease of installation.