Cyberdyne's robot-suit "HAL" (Hybrid Assistive Limb) is being mass produced at 500 units per year. It has been available for rent for around three years in Tokyo. Enquiries are coming in from around the world for use in hospitals and rehabilitation centers. At around $2000 per month, the HAL exoskeleton helps the wearer carry out everyday tasks, including walking, climbing up and down stairs, and lifting heavy objects. The suit can operate for almost five hours before it needs recharging.