Using the UbiDuo has made communicating with our deaf and hard of hearing inmates so much easier. It is very easy to use and fast. You can communicate with inmates in either English or Spanish. The UbiDuo is available for the inmates to use during medical screening, classification process and communicating with staff. You can also use the UbiDuo from a safe distance if you are dealing with high security inmates. Conversations can be saved when needed for documentation purposes. They are durable and if damaged, a replacement is sent for your use until your unit is repaired and returned to you. Customer service is one of the best I have dealt with. I strongly recommend the use of the UbiDuo in any detention facility.