SEATTLE — Amazon held a special event on Thursday to unveil a slew of new gadgets and services.

At the start of the event, Amazon exec Dave Limp said, “We’ve got 70 things to talk about” — and if he was joking, it was hard to tell. According to Limp, Thursday’s event featured the largest number of devices and features that Amazon has ever announced in a single day.

The event was held in the Amazon Spheres, the three large glass domes at Amazon’s headquarters here. Business Insider was in attendance and checked out the devices in the hands-on area afterward.

Here’s everything Amazon announced at its massive September event:

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New Echo Dot

New Echo Dot Amazon

The Echo Dot, Amazon’s bestselling speaker that’s a miniature version of the original Echo, got a bunch of improvements, including a new design and better speakers that Amazon says are 70% louder than the previous version.

The new Echo Dot costs $50, like the previous model, and starts shipping in October.

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New Echo Plus

New Echo Plus Avery Hartmans

Amazon unveiled a new Echo Plus speaker with stronger bass and an equalizer feature that lets you adjust the bass and treble using just your voice.

The new Echo Plus also has an integrated temperature sensor so you can create special commands that trigger actions — for example, you could have it turn on your fans if a room gets too hot. It will also support local voice control, so you won’t need an internet connection to do some basic commands like turning on lights.

The new Echo Plus is available to preorder and starts shipping in October. It costs $149.99.

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New Echo Show

New Echo Show Amazon

Amazon redesigned the Echo Show to have a bigger 10-inch HD screen — twice the display area of the original Echo Show — and better sound quality. It also has two new web browsers, including Firefox and Amazon’s Silk browser.

You can now preorder the new Echo Show, which starts shipping in October. It costs $229.99.

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Echo Input

Echo Input Amazon

Amazon made a tiny standalone microphone called Echo Input, which connects to a third-party speaker through an audio cable or Bluetooth so you can talk to Alexa and control the speaker from across the room (assuming it’s a big room) or from a different room. It’s less than 1 inch tall and barely noticeable.

Amazon says the Echo Input will be available later this year for $34.99.

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Echo Sub

Echo Sub Amazon

Amazon introduced a new subwoofer for the Amazon Echo, appropriately named the Echo Sub. This is good if you like listening to music through your Echo but want some more bass.

It works with the Echo and Echo Plus, and you can attach the Echo Sub to two of the same model of Echo speakers to create a 2.1 stereo sound system.

You can preorder the Echo Sub starting Friday. It costs $129.99.

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Echo Link and Echo Link Amp

Echo Link and Echo Link Amp Amazon

Amazon’s new Echo Link lets you connect all your stereo equipment and features via your Amazon Echo or Alexa app, including music selection, volume, and multiroom playback. Amazon says it will be available “soon.” Echo Link costs $199.99.

Echo Link Amp is like the Echo Link, but with a built-in two-channel amplifier. It will also be available “soon” and costs $299.99.

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Wi-Fi Simple Setup

Wi-Fi Simple Setup Casezy Idea / Shutterstock

Amazon wants to make it easier to set up your electronic devices, so it created two new services. There’s Amazon Wi-Fi Locker, which lets you reuse your network credentials to set up new devices — but the big standout feature is a new system called Wi-Fi Simple Setup, which lets people seamlessly connect their new Wi-Fi devices to their networks.

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Amazon Smart Plug

Amazon Smart Plug Avery Hartmans

Amazon unveiled a new gadget called the Smart Plug, which comes with Amazon’s new Wi-Fi Simple Setup feature.

Here’s how it works: If you connect a new smart kitchen appliance, like a smart coffee maker, into the Amazon Smart Plug, it will automatically connect to your Wi-Fi; no need to fuss with an extra app. It takes “less than 30 seconds,” according to Amazon.

It costs $24.99 and will be available in October.

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AmazonBasics Microwave

AmazonBasics Microwave