Apple pushed back many of its events and product launches, but we're not convinced the Powerbeats 4 should have been available for purchase before the Cupertino-based company would announce them.

Although we know just about about the upcoming Powerbeats 4, it's strange to see an Apple product hitting the shelves ahead of the official announcement. The folks at report spotted the Apple Powerbeats 4 at Walmart.

All three versions – white, black and priced at $150, exactly $50 cheaper than the Powerbeats 3 model. Of course, the price hasn't been confirmed by Apple yet, so the amount ...