A trainee shows the SDEV, Mr Michael WONG (second right), how to detect vehicle malfunctions with Bluetooth transmitters and computer application programmes.

A trainee shows the SDEV, Mr Michael WONG (second right), how to detect vehicle malfunctions with Bluetooth transmitters and computer application programmes.

A trainee shows the SDEV, Mr Michael WONG (second right), how to detect vehicle malfunctions with Bluetooth transmitters and computer application programmes.