SINGAPORE, Dec. 20 -- Japanese discount retailer Don Don Donki has withdrawn helium canisters marketed as novelty voice-changers from its Singapore outlets, as the authorities conduct a safety review, Singapore's consumer watchdog said on Friday.

Responding to queries from The Straits Times, the Competition and Consumer Commission of Singapore (CCCS) said the chain had voluntarily stopped selling the product and was reviewing whether it complied with applicable safety standards.

The canisters, sold at S$19.90 (RM60) each, were advertised as being able to make users' voices higher-pitched when inhaled.

Each contained an 11.6-litre gas mixture, most of which was helium. Product images showed the item was recommended only for consumers ag...