Die LED am Adapter blinkt zur Anzeige des Pairing-Modus in kurzen Abständen. It faints if you glare at it. The tread on these sandals was built to last and great quality. My feet are slipping more and more inside the slippers and stepping up on my step inside my house these are so lose now its hard not to slip right out of them. but I chose not to! Super easy shipping from a quality amazon seller. My earplugs are long and slender and block out my wifes snoring perfectly. Unfortunately these are already coming apart. Changing my review to 5 stars, and if my wife needs anything else for her fitness journey, I’ll be looking to Perfect Peach first! Amazon says I should also mention comfort and how do they fit.