Marketta Sihvo, Ph.D., a Finnish speech and voice therapist, introduced her LAX VOX -method giving workshops at numerous international voice conferences since early 1991.
Devices
Lax Vox Tube
£6,40 – £7,00
- %100 silicon,
- 35 cm length,
- 10 mm inner diameter,
- 13 mm outside diameter,
- High-quality product,
- Colourless, orange, and blue colour options.
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