Amazon B7W64E

Echo Dot (Gen4)

Device type

Smart Speaker

Max power

2.51 W

Standby power

0.9 W

View discovery and setup instructions for this profile.

Powercalc can discover this model automatically (by entity). Look for a discovery prompt in Home Assistant and accept it to create the sensors. About discovery

Through the interface (recommended)

Start the Powercalc config flow, choose Virtual power (library), and pick Amazon → B7W64E.

Open in Home Assistant

Add this to your configuration.yaml, replacing light.my_light with your own entity.

powercalc:
  sensors:
    - entity_id: light.my_light
      manufacturer: amazon
      model: B7W64E

Library sensor documentation

Community usage

158 opted-in installations

3% of 5,254 reporting installationsOpt in to analytics

Device

Manufacturer: Amazon
Aliases: A2U21SRK4QGSE1
+1 more
Form factor: Speaker
Connectivity: Wi-Fi, Bluetooth
Barcode: 840080588209

Power

Power range: 1.63 – 2.51 W

Measurement

Calculation strategy: Linear
Measure device: Gosund UP111
Measure method: Script
Measure description: Measured with utils/measure script
Mains voltage: 230 V
Measure settings: SAMPLE_COUNT: 2SLEEP_TIME: 3VERSION: master

Library

Created: Mar 10, 2023, 5:16 PM UTC
Updated: Aug 31, 2026, 12:33 PM UTC
Contributors: wranglatang
Discovery: Automatic, by entity

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Amazon B7W64E

Echo Dot (Gen4)

Set up manually instead

Through the interface (recommended)

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

Echo Dot (Gen4)

Set up manually instead

Through the interface .css-bxmwoh{margin:0;font-family:"Roboto","Helvetica","Arial",sans-serif;font-weight:400;font-size:0.875rem;line-height:1.43;letter-spacing:0.01071em;}(recommended)

Or configure with YAML

Or configure with YAML

Device

Power

Measurement

Library

Device

Power

Measurement

Library

Through the interface (recommended)