The creator of Android just teased a weird new accessory for his top-secret phone

Essential, the new startup from Android creator Andy Rubin, has teased its upcoming smartphone for the second time.

The shadowy photo, which the company tweeted Thursday, appears to show some sort of attachment at the top of the device.

Take a look:

If we had to guess, that bulb on the top of the phone looks like a 360-degree camera. That would go along with another recent tease from Rubin. He tweeted a photo of what appeared to be some sort of 360-degree camera software about a month ago:

Rubin is expected to show off the new Essential phone in detail at the Code Conference on May 30.

This isn’t the first time we’ve seen the Essential phone teased. Rubin tweeted this photo that shows a practically bezel-free phone a few months ago:

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