Corrected entry: The first time Loki looks through the mask, there is nothing printed on the back. But later on, when Loki looks at the back of the mask, "Made in Taiwan" is printed on the back.
Corrected entry: When Odin is summoned and is screaming to Loki and Tim is telling him to love his son, you can see the microphone and part of the crew. (At the end).
Corrected entry: In the first film, it was established that Loki was a night god who was banished into the mask, which explained why it could only work at night. Yet, in this film, Loki isn't in the mask and it has its own powers.