cprCUBE2 is the newest generation of this Hands-only CPR training aid that can help anyone learn chest compressions without the use of expensive CPR manikins. cprCUBE2 makes learning hands-only CPR fun by using immersive education through visual, auditory, and tactile feedback. A CPR training site can be anywhere you like with the cprCUBE2. Just open the box and expand it. CPR can now be learned any time and anywhere you want.