Brainwavz IEM Grab Bag for $22 shipped [MD]

If you are an adventurous spirit that enjoys participating in wild games of “Grab Bag”, Massdrop is back with another Brainwawz IEM grab bag promotion (they call it “blue box”). You pay $20 plus $2 flat shipping and you are guaranteed to receive one pair of IEMs from six different models. Your choice is determined randomly. Half of the participants [participators sounds more scifi though] will get the Jive, while the rest will be split between five different models.

This offer is limit two units per customer with a maximum of 1000 units available as part of this pearly-dew-drop drop. In addition to that, they have five prizes that unlock depending on how many units are sold. The “prizes” include a trio of AKG headphones and the biggest prize is the Fostex TH-X00. So five out of 1000 units, that’s 0.5% chance of winning per unit purchased. (NOTE: this is a ballpark number, the actual calculation is a lot more complicated because you have to factor in how many units one person bought, and which ones of the offers unlock).