The ReLANpro language lab is the most reliable, and has the most teacher friendly platform; whether using it as a typical/classical language lab, or combining it with 21st Century Cloud learning.
Choose wired or wireless; use your own computers and hardware to allow pairs, groups, individual recording and voice comparison, etc.; or pick the ReLANpro Voyager turnkey, cart-based, solution which has the same capabilities in a portable solution.
The ReLANpro Language Lab software is designed for use in a “traditional” language lab, maximizing the use of 21st Century learning; stable, easy to use and implement in your existing lab.