Japanese manufacturer ICOM said it has not supplied the brand of walkie-talkie reportedly used in a mass attack in 10 years and warned about counterfeits.

By shifting to relatively low-tech communication devices, including pagers and walkie-talkies, Hezbollah apparently sought an advantage against Israel's well-known sophistication in tracking targets through their phones.

Lebanon blamed Israel for attacks on Hezbollah's devices killed 37 and wounded around 3,000, wreaking bloody havoc on the militant group.