I've never been clear on how Amazon's delivery contracting works exactly. I think Amazon doesn't employ any of these drivers directly, and instead just publishes rates that they're willing to work with "delivery partners" for, prompting a ton of companies to spring up in order to contract with Amazon for handling deliveries (these pop-up companies are then on the hook for any labor violations instead of Amazon, which is exactly what Amazon wants).<p>Anyway, my question here is whether or not these microphones are mandates from Amazon, or if they're the policy of some particular contracting company.