Just in case it's not clear, I stated that MEMS mics and IMUs are used in smartphones, and that MEMS speakers have been available for a while now. If it seemed

Just in case it's not clear, I stated that MEMS mics and IMUs are used in smartphones, and that MEMS speakers have been available for a while now. If it seemed like I said MEMS speakers are used in smartphones, that was unintentional.