This is around the lowest price we've seen for theearbuds, and a good deal if you're looking for a budget AirPods Pro alternative. Edifier, via Amazon, is discounting these 'buds from $70 to when you click the instant 50% off coupon (they were $39 a few weeks ago). That's about as good a deal you can get for an excellent pair of "cheap" true-wireless earbuds. I suspect this price won't last long.
While the TWS 330NB earbuds are missing a sensor that automatically pauses your music when you take them out of your ears, they feature good sound quality for the money, decent active noise canceling with a transparency mode and solid voice calling. They have three microphones in each bud for noise canceling and noise reduction during calls.
They fit my ears well -- they're essentially AirPods Pro clones -- and while the touch controls are a little limited, they are programmable using the Edifier Connect app for iOS and Android (you can also set the level of touch sensitivity). They have an IP54 rating, which means they're splash- and dust-proof, and battery life is rated at 4 hours with noise canceling on and 5 hours with it off at moderate volume levels. That's only OK, but you do get an additional two charges in the charging case.