Vehicle remote control jammer

The UK Freeads website carries an advert for a vehicle remote control jammer that claims to block anti-theft alarm and remote locking functions that inexplicably operate, totally inappropriately, within the Amateur Radio 70cm band.

The product itself looks like a low power transmitter that operates on 433.920 MHz. It's price seems steep considering that several Amateur Radio hand-held transceivers for that frequency are cheaper and would jam over a far greater range.

Why UK vehicle remote locking and alarms systems are on this frequency is a mystery. Far more suitable and secure frequencies exist at 868 and 917 MHz.

Freeads - Car remote control jammer in London
http://www.freeads.co.uk/dumfries/business/
businesses_for_sale/businesses_for_sale_in_europe/
6487465/car-remote-control-jammer/view