Most Innovative Headphones With the ety8, Etymotic has created an unlikely pairing of in-ear-canal headphones (canalphones) and Bluetooth. The only cable for these canalphones is the one connecting the left and right sides behind your neck. Instead of bulky earpieces, the ety8 has small enclosures on each earpiece the right side houses the Bluetooth components; the left side contains a rechargeab... Read more.