This new Premium Portable is twice the strength of the white Portable and features a rechargeable battery. This can be recharged using the USB cable provided, at any computer or USB adaptor charger. This portable model is for use when out & about, outside your plugin protected area and is not intended for use inside your home or office as a substitute for the plugin or larger models as it does not offer the same level of protection.
The portable model is designed for short outings or travel between protected zones in order to keep one balanced and protected without experiencing the contrast associated with going from one protected zone to another. The Portable is not water-resistant and needs to be in your pocket or purse or within a 5 metre radius and used between in electric trains or who drive electric vehicles. For protecting a large area the Tesla Gold Series Plug-in, the Tesla Gold Series Cube model or the Tesla Gold Ultra or Premium Ultra models are recommended. Use the Tesla Gold Series Auto in your car or SUV.