The mouth is naturally shaped and w so you can easily tang and tremolo. The outlet is angled to the keyboard surface. It is designed to make it easier to see than a keyboard when playing. Included models: FA-32B P/MXA-32G P/F-32B P/MX-32C CP/M-32C MX-27 /A-34C/M-37C/MX-27S/S-32C/B-24C/PRO-37V2.