For the first time, Meta is offering trade-in discounts for its smart glasses with a pilot program that’s only running through December 31st. According to a legal page on Meta’s website, trade-in discounts can be applied to the Ray-Ban Meta Gen 1, Ray-Ban Meta Gen 2, Oakley Meta HSTN, and Oakley Meta Vanguard. Notably, the Meta Ray-Ban Display didn’t make that list. Limited edition and refurbished glasses also aren’t eligible for the discount.

You can trade in your current pair of first-gen Ray-Ban Meta glasses if you’re looking to upgrade, but Meta is also surprisingly offering trade-in credit for certain pairs of earbuds. Here’s Meta’s full list of eligible ones:

It’s worth noting that there isn’t currently a pair of “Apple AirPods Pro 4,” so it’s unclear if Meta was referring to the AirPods 4 or the AirPods Pro 3.

To get the trade-in discount, you have to purchase your glasses directly from Meta. Add a pair of eligible glasses to your cart, and you should hopefully see a box with the trade-in offer right above it in the cart. Some Reddit users reported having to try different browsers before finally getting the trade-in offer, so maybe try swapping your browser if you don’t see it at first.

Discounts vary based on your device and the condition it’s in, but Meta seems to be offering up to $113 off. That’s a decent dent in the usual $379 price tag on the Ray-Ban Meta Gen 2, which offer twice as much battery life as the previous generation along with a moderate camera improvement. It’s worth noting that the first-gen Ray-Ban Meta glasses are on sale right now, so if you don’t need all-day battery or don’t have another wearable to trade in, your best bet might be going with that less expensive option.