I tried the Ooono Co-Driver: It's handy if you want extra help knowing where (most) speed cameras are

Myths and misunderstandings about speed enforcement cameras

Myths and misunderstandings about speed enforcement cameras

Ooono Traffic Alarm

Household Support Fund Awareness Week

Review: OOONO CO-DRIVER NO1 - Movies Games and Tech

OOONO CO-Driver NO1 Traffic Alarm, The Device for Better Traffic : : Electronics

OOONO CO-DRIVER détecteur de radar Noir

OOONO CO-DRIVER NO1: Warns about speed cameras and road hazards in real time via free app | acoustic and/or optical signal, activated automatically

OOONO CO-Driver NO1 Traffic Alarm, The Device for Better Traffic : : Electronics

CrossHelmet X1 - Heads Up Display, Ambient Sound Control, Bluetooth