==== Notes ====
  * Adhesive? Reapply when come off, have connector to disconnect waterproof housing for transducer?
    * Spirit Gum? 
    * latex based glue?
    * Or superglue?
    * Pros-aide 1?
      * no
        * Expensive and hard to get
    * [[http://paintpal.com/portfolio/the-ultimate-guide-to-skin-glue/|Guide to skin glue]]
  * Bone conduction conducts lower frequencies better then air however bone conduction transducers suffer in transmitting lower frequencies due to bad attachment to bone, they end up vibrating against the head instead of into the bone or they just can't create strong bassy waves.
https://en.wikipedia.org/wiki/Bone_conduction \\
https://en.wikipedia.org/wiki/Bone_conduction_auditory_brainstem_response



http://cyberpunk.asia/cp_project.php?txt=233


GD01

imensions: 21.5*14*7.9mm
Power Nominal input 1.5W, Maximum input 3W
Average voltage :3.7 V
Operate (Max) :12 V
Nominal Impedance :4.5Ω±15% test @200Hz 3 v
Resonance frequency :300-19000HZ
Sound pressure level (minutes) :In the case of 88-1kHz decibels
Current consumption (maximum): 600MA
Distortion :5% less
Operating temperature :-20---60° C
Storage temperature: -30---+70 ° C