The colorful new variants of the Beats Fit Pro wireless earbuds just came out yesterday, and today, the yellow model is already on sale. You can pick up a pair of “volt yellow” Beats for $169.83 at Amazon, $30.12 off their regular $199.95 price. New products and colorways usually take a little longer than one day before they start seeing some discounts, but if you dig a tennis ball-like color for your electronics (the electric volt Xbox controller says hi!), then you’ve got yourself a…