Unicorn 220 FPV testing, and acro mode and beeper setup

I bought a new copter, the Unicorn 220 FPV here for $278.30, free shipping. It is ready to fly, the remote control is included. Needs just four AA-size batteries for the remote. And I suggest to buy at least one extra LiPo accu (one 3S 1500 battery is included, but it works with 4S LiPos as well). The advertised flight time is 8-9 minutes. If you fly more aggressively, it can be less, like 5 minutes. For FPV you need a video goggle, I recommend buying one of the FatShark models.

Good quick review (by Drone Camps RC):

In-depth review (by Nick Burns):

It looks cool, very compact and stable. It flies fast and powerful as well, didn't expect it when I started it first :-) The built-in camera is not as good as the RunCam Swift which I recently mounted in my ZMR250 copter, but still good quality. Me flying it, after setup of my new camping chair:

There is a switch to choose stable, horizon or acro mode. Acro mode is disabled when delivered, but can be enabled when connecting the copter via USB to a PC and change it in CleanFlight, which is installed on the flight controller. See the following image how to do this (click on the image to see a bigger version) :

Initially the "Horizon" mode is configured if the aux 2 switch is in horizon and acro mode. If you move the range to the left, in acro mode no special mode is activated, which is then the acro mode for CleanFlight.

Additionally you should configure the beeper. If your copter is lost in some high grass, it is good if you can enable the beeper with a switch. I needed this once and it was not enabled. Fortunately if you arm the copter, it makes some beeps as well, but not when the copter is upside down, because then you can't arm it, so I was lucky. I couldn't figure out how to use the unused SWB for it, but I never need horizon mode (I only fly acro mode, or angle mode if a beginner wants to test it). So scroll down to the "BEEPER" mode settings and select the range for AUX 2 for enabling the beeper. If you don't use acro mode, you can select the range in the upper third. Then click the Save button. Now you can use the flight mode switch to enable the beeper, which has a good volume.