A new speaker/dock called Vaux gives Echo Dot two things Amazon left out. But does that make Echo Dot and Vaux a better buy than Amazon Tap? Amazon’s second-generation Echo Dot ($50) is essentially an Echo minus the larger device’s rich-sounding speaker. Now, a company called Ninety7 is giving Echo Dot the speaker that Amazon didn’t provide. Vaux is an attractive, $50 battery-powered speaker/docking station specifically for Echo Dot. Drop your Alexa-enabled Echo Dot into the top of the speaker, connect the two using Vaux’s built-in microUSB and 3.5mm aux input cables, and away you go. Ninety7 Echo Dot is now portable, and it sounds better. To my untrained ears, Vaux’s audio is noticeably richer than the Echo Dot’s tiny built-in speaker. But it doesn’t compare to the full-sized Echo. And I’d say it’s just a tiny bit less impressive than Amazon’s Tap, which is also a portable, Alexa-enabled speaker. (In a firmware upgrade, Amazon recently added to Tap the capability to summon Alexa using your voice. Initially, you had to ‘tap’ a microphone button.) Vaux comes in ‘carbon’ (black) or ‘ash’ (white) to match your Echo Dot’s colors. But honestly, it doesn’t matter which color you buy. Once you insert Echo Dot into Vaux, all you’ll see of Amazon’s device are its top buttons and the ring, which illuminates when you talk to Echo Dot. If you already own an Echo Dot and would like to give it portability and better sound, Vaux is worth considering. The total cost of an Echo Dot and Vaux speaker: $100. However, if you’ve yet to purchase an Echo Dot, then you might want Amazon Tap instead. Though it costs $130, Tap offers some advantages over Vaux. Echo Dot is lighter, at 16.6 ounces. Vaux weighs 1.8 pounds. Echo Dot is more compact, at 6.3 inches tall and about 2.6 inches in diameter. By comparison, Vaux is 6.4 inches tall and 4.2 inches in diameter. Echo Dot’s battery life is longer, providing up to nine hours of continuous playback, according to Amazon. Vaux’s battery goes for about six hours, according to Ninety7. Keep in mind that, unlike some portable wireless speakers, Vaux isn’t waterproof or water-resistant. Also, it requires a Wi-Fi connection to work, so taking it on the road may prove problematic. Related content opinion 3 top travel apps worth revisiting TripAdvisor, Kayak, and TripIt have been around for years. But they keep getting more powerful and more useful with new features. By James A. Martin May 09, 2017 4 mins Mobile Apps Consumer Electronics opinion Who's smartest — Alexa, Siri, Cortana, or Google Assistant? You won't be shocked to learn that Apple's Siri virtual assistant has the best sense of humor. But you might be surprised to learn which virtual assistant is the smartestu2014and which one is no. 2 with a bullet. By James A. Martin Apr 27, 2017 4 mins Gadgets Mobile Apps Artificial Intelligence opinion Does the world need a Windows smartwatch? The answer is, 'yes,' if you like the idea of a commercial-grade wearable for retail, hospitality, healthcare and manufacturing. But the track record of squeezing Windows into a small device isn't good. By James A. Martin Apr 26, 2017 4 mins Wearables Mobile Apps Consumer Electronics opinion 4 reasons to consider Garmin's new vivosmart 3 Garmin's vivosmart 3 activity trackers has a lot going for it u2014 but you may find it to be too much of a good thing. By James A. Martin Apr 24, 2017 4 mins Gadgets Mobile Apps Wearables Podcasts Videos Resources Events SUBSCRIBE TO OUR NEWSLETTER From our editors straight to your inbox Get started by entering your email address below. Please enter a valid email address Subscribe