The battery lasts for 8 hours on average, and is rechargeable via USB.
The HUB has a standard range of 50 meters. In most cases, a single HUB can cover an entire gym; though for larger areas multiple HUBS can link together to extend the coverage area.
There is a one-time license fee of $750 per location - Subsequent updates are free of charge.
Currently the Heart Tech Plus Group Fitness System is limited to iOS on iPad 2 or newer.