Inclusion Criteria:  Laryngectomized patients using either the Provox Vega 22.5 or the Provox ActiValve Light voice prosthesis, with a length of 4, 6, 8, or 10 mm 18 years and older  Exclusion Criteria:  Current tracheoesophageal puncture problems such as enlarged puncture or infection Active recurrent or metastatic disease (medical deterioration) The use of ActiValve Strong/XtraStrong or XtraSeal Unable to understand the Patient Information and/or unable to give Informed Consent The previous 2 VPs had a device lifetime > 12 months History of oral resections negatively affecting speech