Harmo Polar Half-valved harmonica:

This harmonica is standard richter tuned and valves are added to make it easier for beginner and intermediate players to get more notes without using overbends. You can bend more notes on a half valved than on a standard harmonica (but you can’t overblow).

Valves are commonly used in chromatic harmonicas and they can also prove to be useful on a diatonic for players who know how to bend and prefer to use this traditional technique to get additional notes instead of trying the more modern approach of overbends.
Bending valved reeds also gives a different sound than bending standard reeds.

In the table below we can see a full diagram showing clearly what extra notes are available thanks to the added valves.

Polar diatonic Harmonica by Harmo Amazing, Versatile, Stylish. 

The Polar harmonica uses an in-house-specific process that makes it particularly well adjusted for powerful and precise playing giving you great projection, airtightness and a good starting overblow-friendly setup.

Full and loud tone with fast response.

The Polar’s white matte covers are a unique feature that will make you stand out in the crowd.

The edges are very smooth and suitable for any harmonica player.
The Polar Diatonic harmonica by Harmo Half-valved comes in 13 : C, Db,D, Eb, E, F, F#, G, Ab, A, Bb, B, Low-F

Package includes:
- A sturdy zipper case keeps the dust out and allows moisture to evaporate.
- A wiping cloth 
- Basic playing instructions