I had to translate from Mandarin to figure out left, right, front and rear. I came across the H-3 actually on sale. Secondly, the Bluetooth disconnects completely when they charge. i will say you get what you pay for the problem i had with the original straps i they became stretched out and no longer functioned how ever those took much longer to wear out that these but those are also about triple the cost these straps are good as it has been 2 months and the strap is just now starting to stretch out since its only 10 dollars i dont mind having to buy another one soon as it last about as long as i expected and is still better than buying the premium ones on the main website. to cold right now to wear but she has been wearing around the house. After reading a bunch of reviews on these I was nervous but I?m going on a trip in a couple weeks and these were exactly what I was looking for so I went ahead and bought them. AND - they look very nice! THEY FIT PERFECT AND ARE VERY SOFT AND COMFORTABLE. If you prefer the just fit look, order half size down. If you have superpower vision and highly dextrous fingers.