HAL® S3000 a proven tetherless simulator Tetherless technology permits the communications, compressor, and power supply to be inside HAL®, eradicating other external tubes, wires, and compressors. HAL® will function endlessly even during transportation. And hence, guidance can take place in fact in the working environment. One can hurry HAL® from the accident scene to the ER, to the ICU and, on to recovery. The medical professionals will then analyze and treat her condition using real monitoring and revitalization devices. One can control HAL® at a distance of up to 300 meters and between rooms and floors of conventional buildings. HAL® can smoothly changeover between physiologic states in response to commands from a wireless PC.