One unusual feature is that it is equipped with a fan for dissipating heat. I believe the unusual design actually functions as a radiator that further assists heat management. Idealoeye claims that it can operate for 1.5 hours.
The C2 also has two (?) 3.5mm stereo microphone input jacks. Having even one mic input jack is a rare feature in consumer 360 cameras. I don't know if it mixes the audio from two microphones or what.
The C4 is IdealoEye's middle-tier camera with four lenses. It looks somewhat like the Z Cam S1 and Detu F4. It is fully spherical, with a video resolution of 6k @ 30fps. Like the C2, it is also capable of 360 livestreaming in 4k x 2k, but at a higher bitrate of up to 80 mbps.
When I inquired about pricing and availability, the rep said it's not yet available because they're still testing it.
The representative at CES said the P21 costs $40,000.
Idealoeye also makes VR headsets through its affiliate Idealsee. Idealsee has a standalone VR headset called the Idealens K2.
Idealsee claims that the K2 is capable of as little as 17ms latency, and a 90 Hz refresh rate. I was able to demo the K2. It did have positional tracking. However, it seemed that there was noticeable lag. Idealens K2 will retail for $599.
Idealsee's other VR headset is the M1000. It features 8k resolution and a 180-degree FOV. Unfortunately, it wasn't available to try at CES.
Idealoeyes' cameras look very interesting indeed, as is the Idealens M1000 headset. I look forward to finding out more about their products.