If you’re fed up with mobile phones and want to create a bubble of quiteness around you, this is for you. This portable device scrambles the GSM and GPS signals, making cell phones and GPS receivers unusable.
Via chinavision.com.
If you’re fed up with mobile phones and want to create a bubble of quiteness around you, this is for you. This portable device scrambles the GSM and GPS signals, making cell phones and GPS receivers unusable.
Via chinavision.com.
How far is the range?
According to their chinavision.com, the range is 10 meters.