BTW: it's not just pagers ...
Two Lebanese security officials and a Hezbollah official, who asked to remain anonymous because of the sensitivity of the situation, said the devices that exploded on Wednesday were hand-held radios — commonly known as walkie-talkies — belonging to Hezbollah members.
The Lebanese Red Cross said that 30 ambulance teams were responding to “multiple explosions” in different areas of Lebanon, including the country’s south and east. Fires have broken out in homes, cars and shops in several parts of Lebanon, including the Bekaa Valley and Beirut’s southern suburbs, a Hezbollah stronghold, the Lebanese Civil Defense said.
But despite the tactical forcefulness of the attacks, Hezbollah said it would not cease the cross-border strikes it has launched against Israel since last October in solidarity with Hamas. The conflict has caused over 150,000 people to flee their homes in Israel and Lebanon, and Israeli officials have faced growing frustration from the tens of thousands of displaced Israelis unable to return home. [
source]
If true, it's hard not to marvel at the craftsmanship involved. Hezbollah and their friends are no doubt becoming increasingly electronics averse.