Decibel by Azzaro was launched in 2011. A delectable & inviting scent, Decibel emanates dark & mysterious masculinity. The ideal fragrance for evening wear, particularly during the winter months. Top notes are amalfi lemon, aldehydes & liquorice; middle notes are incense & violet; base notes are vetiver, tonka bean & vanilla. Top Notes: Amalfi lemon, aldehydes & liquorice. Middle Notes: Incense & violet. Base Notes: Vetiver, tonka bean & vanilla.