The most private room in the house may not be so private anymore. At CES 2018, Kohler announced a line of connected kitchen and bath products called Kohler Konnect, all of which work with Alexa, Google Assistant, and Apple HomeKit for Siri.

The star of the lineup is Kohler's Verdera Voice Lighted Mirror, which has microphones, speakers, and Amazon Alexa built in so it can answer questions ("What's the weather today?"), adjust its lights by voice ("Turn on shaving mode"), and control other compatible devices around the house, including Kohler's other connected products—no separate smart speaker required.

Kohler is just one of many manufacturers showing off products with Alexa or Google Assistant baked right in. Other brands include iDevices, First Alert, and GE Lighting.

"Voice is the new user interface, and we will see even more controllable devices in 2018 and 2019," says Blake Kozak, a smart-home analyst with IHS.

With voice control being so crucial, competition among the leading voice assistants has become fierce. Amazon’s Alexa platform got most of the attention at last year’s CES. This year Google is fighting back, creating a booth showcasing Google Assistant-compatible products and plastering “Hey Google” ads all over Las Vegas.

Thanks to this competition, there's now a bunch of new smart-home products that can be controlled by one or more of the big three assistants. Several new devices now have the microphones and speakers required for voice interaction built right in, so they replace the need for a separate smart speaker.

From the bathroom to light fixtures and wall switches, it's now possible for these assistants to live in every room and hallway of your home.

Alexa in the Bathroom

In addition to the Verdera Voice Lighted Mirror, the Kohler Konnect line includes the Numi Intelligent Toilet, VibrAcoustic Bath, DTV+ Shower System, and Smartwarm heated toilet seat.

Kohler isn’t the only one bringing voice control to the bathroom. Rival manufacturer Moen also announced Alexa and Siri integration for its U by Moen Digital Shower. You won’t be talking to your Moen shower, but you could control it from a Kohler Verdera mirror. 

Assistants in Your Lights and Walls

Outside of your bathroom, there are new ways of embedding voice assistants into the very fabric of your home via lights and walls. That means you could just speak into your bedroom to get the forecast as you dress without having to place a smart speaker in the room.

First Alert announced its new $249 Safe & Sound smart smoke alarm that doubles as a smart speaker. It comes in two variants, one with Amazon Alexa, the other with Google Assistant.

iDevices announced its new Instinct smart light switch with Alexa built in. There's no pricing yet, but considering the company's regular smart switches cost $100, the Instinct switch will likely have a premium price.

And last, there’s GE Lighting’s new C by GE Smart Ceiling Fixtures, which will let you talk to Alexa and/or Google Assistant right from a room’s lighting. It's unclear if the same fixture will house both assistants or what the fixtures will cost.

And let’s not forget Apple—all three devices above also work with Siri. 

The Implications of Assistants Everywhere

With these new devices, it could one day be possible for Alexa and Google Assistant to essentially become disembodied voices in your home. And that could have pretty significant ramifications for consumer privacy and security.

“On the security side, you're creating a lot more attack surface for your house,” says Justin Brookman, director of consumer privacy and technology policy for Consumers Union, the policy and mobilization division of Consumer Reports. "Microphones could be compromised to access very sensitive personal data in your home, beyond what Amazon and Google want to do with it."

More From CES 2018

According to Amazon, there are many microphones and chipsets that these manufacturers can use. So it's not likely they would all be vulnerable to the same hardware flaw, but we can never be 100 percent certain these devices won't get hacked.

“On the privacy side, these devices are typically configured to only transmit data when triggered by a command word, which is good, but you're still telling Google or Amazon, and possibly Kohler and First Alert, a lot about your life," says Brookman. "They could use that data to market to you, charge you different prices, or sell it to another company.”

The only thing consumers can really do to avoid these pitfalls is either not buy these products at all or familiarize themselves with the privacy policy of a device they're considering purchasing. If your data isn't sufficiently safeguarded, you'll need to look elsewhere.

Despite these concerns, companies are still betting big that you’ll want these devices in your home.

“Many consumers may not want a voice-controlled light switch until they have a chance to use it and find that they can turn on or off a light without getting out of bed or off the couch,” says Blake Kozak of IHS. “It’s about convenience.”

The convenience of having an assistant essentially built into your home could also one day make owning a smart speaker redundant, but that will be of little concern to Amazon and Google.

“Although Amazon could be losing out on Echo or Dot sales by allowing others to create Alexa-embedded devices, Amazon’s goal is not to sell Echos, but to sell Prime and other services,” says Kozak, who told us Google is in a similar situation. “The digital-assistant battle is more about selling an ecosystem/platform and less about selling devices.”

It’s Alexa’s world, and we’re just living in it.