Opening things up was not so easy, and we do not recommend you attempt this; if you do, you risk damage to the body, as well as potential damage to the wiring by pulling it apart. On the left side, we see the four Ohm 3W 30mm driver used for sound production, and following the wiring, we see a tiny microphone glued into the heel.
As we dig in to see all of the switches, we find this trio used for the left side buttons. These are an unusual design of pad style switches with long black stems, and we found no branding on them.
The left click button uses this white OTM branded switch. These are slightly tougher to press than an Omron switch, with the same level of noise. As for their longevity, little information is out there for this brand, and to be honest, they only have to outlive the warranty.
To handle the Bluetooth traffic within the IBT-C04, they have chosen to use the iSSC Technologies version 3.0 with noise and echo reduction, which is stated to get ten hours of playback with only 120 mAh of LiPo power. So, with a full charge, there is roughly 75 hours of audio potential.
To control the tracking and movement, SEENDA has gone with the Pixart PAW3205DB optical sensor for its low-power capabilities. This sensor offers up to 1600 CPI resolution, but as to the specific DPI settings of the button, they are unspecified for each of the four levels.
Of course, as we make it back to the front of the mouse to look at what is under the right click button, we again find the match to the other OTM white point switch.
To power the mouse, or the Bluetooth aspect, or both at the same time, that is handled by the SDL 063443PL 1S LiPo pack. While the model number comes back to an 850 mAh battery, this 3.7V pack is specified to be a 900 mAh version.
Read more at http://www.tweaktown.com/reviews/6854/seenda-ibt-c04-wireless-bluetooth-music-mouse-review/index4.html