I even phoned the company to enquire about a second wrist band only to be told you could only pair one wrist band with a unit for security reasons

Good but the battery life in my view is just simply not good enough

If you want the mobility this unit offers and can be disciplined to allways put it back on charge the you will not be disappointed

I give mine to the baby sitter for a few hours at a time and i use it during the day when baby takes his long lunch time nap and i have no problems with the battery