If this thing was working they would not need to advertise. People, happy customers, would do advertising for them.
Those who know about sales techniques can see artificial scarcity message hidden: "product will be only offered to those who live in one particular city".
As a matter of fact, space does have energy, but it is not what they are selling. Anybody can make a radio receiver (without batteries) and listen to the radio, however it is an ultra low power device.
Engage in Secure Exchange
Want DP delivered to your inbox daily? Subscribe here: