This would be a lot better if it was priced closer to cost. $70 is excessive for an a few RGB LEDs, microcontroller and a buzz motor. These things can't cost more than $10 to manufacture even at low scale. You have to buy at least 2 for it to be interesting they should sell them for $20-$40 each. Maybe the pricing will come down as they get orders. Very cool concept though. I hope they have some patents on it or they…
I get hung up on strange addition in pricing.
1 for 69
2 for 99 = 69 + 30
3 for 129 = 69 + 30 * 2
10 for 430 = 129 * 3 + 30 + 13
69 + 30 * 9 = 339 != 430