Air Transat – Airbus 330-200 – Hand Held Terminal – Smoke Emission

C-GUBH, an Airbus 330-200 aircraft operated by Air Transat, was conducting flight TSC708 from Vancouver Intl, BC (CYVR) to Paris/Charles de Gaulle, France (LFPG) with 11 crew members and 292 passengers on board.
During cruise flight in the vicinity of London, UK, a Hand-Held device used for on-board sales by the cabin crew started to emit smoke.
Procedures were followed and the device was secured. The flight continued to destination and landed without further incident.
The cause is being investigated by the air operator.