When plugged in, is this device "always on"? Or does it "time out" when not in use?

It is always on. I have mine plugged into a switched outlet which is only on when my AV receiver is powered on.

How many hours does battery last?

The HA100 is not battery operated; it comes with a power adapter that must be plugged into a power source. Regards, TP-Link Support

Anyone know how I can rename the device name? I have two in my household and devices constantly send them to the wrong receiver they are 1 floor apart

Typically you can rename them in your phone Bluetooth Devices menu. Just be sure to shut off both BT devices, then only turn on the one you want to rename. I have done renaming with my Samsung S7 Edge Android. There is a settings "gear" next to the TP-Link name in the "Available Devices" menu. Open up that setting menu and there will be a box "Rename Device". Hope this helps.

How well does it work with Amazon Dot?

There is only one Dot issue and it may not apply to all user. When you play a Music Group (multiple Echo devices in a home for whole house audio), the Dots and/or Echos in that group use Bluetooth to link up and therefore, the sound only comes out of the Dot or Echo when that happens. The speaker you are linked to is then cut off and no longer plays sound from the Dot. When you just play one Dot or Echo to this device, it works fine. This is more an Amazon flaw and less a TP-Link problem. The only work around is to hook a Dot with a speaker up using 3.5 mm minijack AUX cable to each other directly. But, be aware that when you turn off the speaker, you no longer can hear the Dot until you unplug the minijack cable from it. With a Bluetooth device like this one, that is not the case. If the speaker this is attached to has a sleep mode and turns off, the Dot goes back to ITS speaker. Making it still entirely usable.

ASIN	B00YPATOEE
Batteries	5 Lithium Ion batteries required.
Best Sellers Rank	#70,219 in Electronics ( See Top 100 in Electronics ) #320 in Wireless Audio Receivers & Adapters
Color	Black
Connectivity technologies	Wireless
Customer Reviews	4.4 4.4 out of 5 stars (8,079)
Date First Available	August 12, 2015
Is Discontinued By Manufacturer	No
Item Weight	8.8 ounces
Item model number	HA100
Language	English, English, English
Manufacturer	TP-LINK USA
Other display features	Wireless
Product Dimensions	2.6 x 2.4 x 0.7 inches
Whats in the box	Ha100 Bluetooth Music Receiver
Wireless communication technologies	Bluetooth

HA100

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