Q: How do I change the volume?
A: To increase the volume: a short press on the top part of the multi-function button or on the + on the remote control (maximum 4 steps up). To decrease the volume: a short press on the bottom part of the multi-function button or on the - on the remote control (maximum 4 steps down). Each time you change the volume you will hear a single beep and see a single flash on the LED. At maximum and minimum you will hear a double-beep and see a double flash on the LED.
Q: How can I set up the volume through Roger Touchscreen Mic or EasyGain?
A: The volume/EasyGain setting can be changed through one of three possible methods:
- On-board multi-function button
- Touchscreen Mic
- Phonak RemoteControl
Once it is set, it stays that way until it changed via one of these methods. The volume can also be locked with the multi-function button or the Phonak RemoteControl. Also, when switched off/on, or after a battery change, the volume setting and lock status does not change.
Q: Why do open domes need to be used?
A: Roger Focus II is fitted to people with normal hearing or minimal hearing loss. Therefore we recommend the use of an open dome or a cap dome for natural sound. If additional retention is required, a SlimTube earmold with maximum venting can also be used.
Q: What is the maximum output value?
A: The maximum output value with SlimTubes is 86dBA free field equivalent, which is compliant with the maximum 90dBA for long time average as specified with the EN50332-1 standard (maximum sound pressure for earphones associated with portable equipment).
Q: Can a hook be used instead of the SlimTube?
A: Mechanically, the Roger Focus II housing allows the use of an ear hook instead of the SlimTube. The effect of switching to an earhook on the acoustics is to shift the resonance frequency around 1kHz, and add gain (+8dBspl @1kHz). The maximum output value is 87dBA free field equivalent, which is compliant with the maximum 90dBA for long time average as specified with the EN50332-1 standard (maximum sound pressure for earphones associated with portable equipment). This means there is no risk for the use of Roger Focus with a hook instead of the SlimTube. If a Roger Focus is used with a hook, the volume can be reduced with the Volume Control in order to have the same conditions as the use with a SlimTube.
Training guides and videos for schools using the Roger Focus II solution. This solution improves speech recognition for children in the classroom.1,2,3,4,5
1 Jones, C. (2014). Roger Focus for school children. Field Study News. Retrieved from www.phonakpro.com/evidence, accessed February 2021.
2 Rance, G. (2018). Remote microphone listening devices for adults and children with unilateral hearing loss. Phonak Field study news. Retrieved from www.phonakpro.com/evidence, accessed February 2021.
3 Rance. G., Chisari, D., Saunders, K. and Rault, J.L. (2017). Reducing Listening-Related Stress in School-Aged Children with Autism Spectrum Disorder. Journal of Autism and Developmental Disorders, 47(7), 2010–2022.
4 Schafer, E., Gopal, K., Mathews, L., Thompson, S., Kaiser, K., McCullough, S., Jones, J., Castillo, P., Canale, E. and Hutcheson, A. (2019). Effects of auditory training and remote microphone technology on the behavioral performance of children and young adults with Autism Spectrum Disorder. Journal of the American Academy of Audiology. 30(5), 431–43.
5 Kristin N. Johnston, Andrew B. John, Nicole V. Kreisman, James W. Hall III & Carl C. Crandell (2009) Multiple benefits of personal FM system use by children with auditory processing disorder (APD), International Journal of Audiology, 48:6, 371-383