Nokia has unveiled a rather mysterious Windows Phone teaser today. In a YouTube video, the company simply asks, "Have you heard what’s coming?" After some car revving the 15-second video goes on: "See and hear what you’ve been missing," before it fades out to Nokia and Windows Phone logos. Nothing else is teased, and it’s not immediately clear what Nokia is planning to announce. However, Nokia has posted this particular teaser to its US YouTube account, suggesting this isn’t a worldwide announcement.

It’s likely that Nokia is getting ready for its upcoming Lumia Icon device for Verizon. After months of leaks the handset is practically official, but Nokia and Verizon have not yet acknowledged its existence. Nokia’s Lumia Icon is a smaller version of the giant 6-inch Lumia 1520. Instead, it includes a 5-inch 1080p display, 20-megapixel camera, and a 2.2GHz quad-core processor. The Lumia Icon has leaked a number of times under the name Lumia 929, but recent postings on Verizon’s website suggest the final branding will be Lumia Icon.

Nokia is also preparing to release its Treasure Tag Bluetooth accessory. The Verge previously revealed details of the hardware last year, but Nokia has been testing it ever since and released a Windows Phone app for the hardware this week. Treasure Tag is a proximity-sensor accessory that combines Bluetooth 4.0 and NFC to track items from a phone. The Treasure Tag will pair with Lumia Windows Phones via NFC, and it can be attached to items like keys or bags to locate items when they’re lost. Nokia’s teaser of "see and hear what you’ve been missing," could suggest we’ll see the Treasure Tag accessory arriving alongside the Lumia Icon. Sources familiar with Nokia’s plans have revealed to The Verge that Treasure Tag’s release is due in the coming weeks.