Aikon tipped us with a tweet which comes from “Baidu” and claims that Nokia Guru is actually Bluetooth Stereo Headset BH-121 with NFC. After exploring a bit we found full drawings of the BH-121 from FCC as can be seen above. Also, many retailers are listing BH-121 with delivery date of 16th December 2013 in Czech Republic. The pricing is also revealed to be around 1050 CZK which converts to 54 USD.
Nokia World came but Nokia Guru was not announced along with many other leaked devices (Lumia 525) and accessories like Treasure tag. We have some info about one more major Nokia event to be scheduled sometime in end of November to first week of December, but no full confirmation yet :).