1. Price - There are some inexpensive wireless earbuds (under $29.99) available on the market but I would advise you to avoid them, almost without exception. At bargain basement rates, decent wireless earbuds don't come. They need a good quality bluetooth chip from the likes of Qualcomm for a start,and they need some decent high density batteries to get them to operate between charges for more than an hour. 2. Eartips- One of the most significant aspects of a pair of earbuds is this. For your ear canal,silicone eartips that are too small or too shallow will not shape a proper seal and you will never get a good tone, and external noises that interfere with the music will also plague you. 3. Volume - When it comes to volume levels not all wireless earbuds are made equally. Some earbuds need to be turned up to full volume, while others with the volume set at 50 percent will provide enough sound. If you can compare a few models by googling them, try to check the volume levels because there's no way to get more than full volume from them with wireless earbuds, unlike a pair of wired earbuds that can be connected to a mobile speaker. Check out our range of earbuds here.