Tracing the path of the exploding devices to Lebanon requires a close look at an often convoluted route from suppliers to companies that make commoditized electronic goods.

The AR-924 pager, advertised as "rugged," contains a rechargeable lithium battery and could receive texts of up to 100 characters. It also claimed to have up to 85 days of battery life, crucial in Lebanon, where electricity outages are commonplace following years of economic collapse.

Hezbollah war grows as the two sides trade new fire, Hezbollah's leader accuses Israel of crossing "red lines."

Days after the attacks on Hezbollah with exploding electronic devices across Lebanon, Israel has struck a suburb of Beirut.