Aurus 9WA Air Support, Practice Aid for Wind Instruments, Device for improving continuous air pressure, Can be attached directly to any wind instrument with the help of a clip and / or a rubber band, The player can quickly switch between mouthpiece and AIR SUPPORT and check his progress immediately, The player has the possibility to practise fingerings and at the same time to train air support, tongue-flick and articulation, The required air pressure can be adjusted by means of a continuously adjustable screw, When the support and attack are correct, an LED lights up continuously, Suitable for all wind instruments, Includes CR1225 battery
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