Here at the Komando HQ, we often get questions about Bluetooth trackers. "Why would I want one?" you may wonder. This versatile lost and found tech has a ton of potential. Not only can you use it to keep track of your gadgets, but you can also keep a close eye on your family and pets. Here's how.

Have an Amazon Echo at home? With Drop In, you can pop in on your speaker or one owned by a friend or family member who gives you access. It’s an excellent way to say hello without picking up the phone.

To enable Drop In:

• Open the Alexa app and tap Devices.
• Select Echo & Alexa, then select the device you want to use.
• Tap the settings icon in the top right corner, then choose Communications.
• Tap the toggle to enable Drop In and other communications.
• Tap Drop In to customize who can Drop In. You can select My Household to limit this to only devices on your account.

You can now use the Alexa app to pop into your Echo devices. In the app, tap Communicate at the bottom of the screen, then Drop In. Choose the device you want from the list.

🔈 Want more Echo tricks? Here are four other smart uses.

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Fraudulent emails are becoming more sophisticated every day. Gone are the days when we could recognize scammy emails by grammar errors or weird punctuation. Now, you need to recognize the subtle signs of a phishing email. Here are five you should keep on your radar.

The internet is full of junk. We find the good stuff for you, from helpful tools to get stuff done to the best apps and websites out there.

The more we rely on our devices for work, school and our personal lives, the more we have to lose. Whether it’s bank accounts, personal data, photos, conversations — there’s just so much to preserve and protect. That’s why I recommend TotalAV’s industry-leading security suite. It’s easy to use and offers the best protection in the business. In fact, they’ve received the renowned VB100 award for detecting more than 99% of malware samples for the last three years in a row.

Not only do you get continuous protection from the latest threats, but their AI-driven service, WebShield, blocks dangerous websites automatically, stopping threats before they reach you. Plus, you can subscribe to data breach alerts and clear out old files with the Junk Cleaner.

When you think about eye strain, your computer or phone might be what comes to mind. But your TV can impact your eyes, too. Luckily, it's not hard to give your eyes a break by considering where your TV is and adjusting a few settings.

Want to bathe your home in all the colors of the rainbow? Just buy a multicolor smart bulb. You can light up your bedroom with wonderful orange, pink and purple colors. You can even light up multiple rooms with great colors with the correct bulb. Here are the best smart LED lights for any budget.

Master all things Microsoft with Kim's Windows newsletter. Free downloads, update news, pro tips and more, delivered weekly.

If an atomic bomb detonated right near your eye, the flash would be a billion times less bright than if you watched the sun explode from Earth. That just goes to show you just how powerful a supernova is. What would happen to the Earth if a star exploded nearby, and what about all of us?