Tesla Gold Series Cube model comes in silver alloy with grey ABS corners and a blue LED. The Cube model protects an area up to 180 meters spherical diameter, or simply 90 meters in every direction. This can be used to protect a large house or office space, or wherever you need high powered protection against cellphone tower antenna masts – generally within 1km or line of sight. Tesla Gold Series Cube covers twice the area of the plugin and is at least 6 times stronger field protection than the plugin. If you live within 1km from a cellphone tower or have more than 6 Wi-Fi signals invading your home, then the Cube is for you. If you have an array of smart meters (more than 5) near your apartment or house then you need the Ultra model which is twice as strong and covers the same area as the Cube. This new multi-wave waveform configuration offers the best protection to date from radio frequency radiation and 4G. Some people will experience a detox while initially using this product. This is due to the release of stress on the body from EMF and also boosting the immune system. A detox maybe a metallic taste in the mouth, thirsty and dry mouth, a mild headache, skin eruptions to name but a few. This is a sign the immune system has gained some ground and has begun to normalize itself. This also tells us the unit is doing its job effectively. It is ideal to drink plenty of water and take some form of vitamin C during this transient time. Once adjusted your body will be acclimatized and no longer detox. Some people don’t experience a detox but notice boundless energy and exceptional emotional stability instead. Tesla Gold Series Cube model is designed for homes, offices, schools, hospitals and people who live within line of sight of a cellphone tower antenna mast. We recommend you purchase an Tesla Portable model to carry with you when you are away from the house, this will keep up your protection level.