Unicorn User Manual
Please note that the Unicorn User Manual is claiming that the Unicorn has a Yihi SX chipset. That is NOT true. I have run into problems with this Unicorn and decided to replace the chipset with a real Yihi SX 330 chipset. While doing that, I took pictures of the Unicorn chipset ... definitely not by Yihi.
The Unicorn has a Yihi SX chipset. The functionality is identical to the IPV 2 and the manual is missing instructions. The instructions missing are to control the touchfire button (enable/disable):
Disable (turn off): Simultaneously press the Fire button and – (minus) button for 2 seconds
Enable (turn on): Simultaneously press the Fire button and + (plus) button for 2 seconds.
Note that when you get the device and put batteries in the very first time, the touchfire button is disabled by defualt.
Here's the user manual pages: