In Valkyries boxing video below she swaps between the 2 best Littmann steths. They both have high quality microphones for the 1st time ever. Both steths go to both speakers. While one is on her chest the others volume is at zero. Since the steths took up the left and right audio channels the boxing audio is also recorded from one of the steths.

Uploaded 3 new videos to Divine Valkyrie.
In out alternating breath holds. She does a no air vacuum followed immediately by a full air breath hold. She keeps alternating between the two until she gets tired of it. Heart beat recorded with the Littmann. She changes her angle a few times.
Serious boxing steth swapping. She swaps between the two best Littmann steths at the same auscultation site a few times between each set. On the next set the Auscultation site is changed. She’s very determined and packing some power behind her punches. Really awesome video.
Underwater sexy posing at night with glitter. Her glitter makeup sparkles in the water while the light shines from behind. General sexy, graceful movements with good contractions.