Would this work on a varo cube speaker?

You need to compare to the factory power adapter specifications. With that being said, this one is suppose to be 18VDC @ 3.5A but the one we got actually measured 20.3VDC which is a bit too high for a device that requires only 18VDC. The plug end was standard (5.5mm x 2.5mm) which most devices need but check and compare to your actual original power adapter.

is the output 18v AC ?

By looking at the label on the power supply, it is suppose to be 18.5V, not 18VDC but we actually measured the output as 20.3VDC with a high quality digital volt meter (Fluke) so, you really need to be careful with this power adapter and if you do choose to purchase it, please check the actual output. Most devices that need 18 VDC may be ok with slightly higher voltage but then again your device may actually not work correctly or even burn out.

Will it work on brookstone wireless weather-resistant indoor/outdoor wireless speaker???

The charger parameter is Input:100-240V, 50-60Hz; Output: 18.5V 3.5A,you can confirm your brookstone wireless speaker, I hope it can help you，thank you.

New Ac Dc Adapter Charger Replacement For 18v Big Blue

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Description

🔋 Power your party with certified precision and plug-in freedom!

CERTIFIED RELIABILITY - Meets CE, FCC, and RoHS standards ensuring safe, eco-friendly charging.
POWER UP WITH PRECISION - Delivers a stable 18V and 2.5A output for flawless speaker performance.
UNIVERSAL PLUG IN FREEDOM - Supports both North American Type A and Type C plugs for versatile use anywhere.
SEAMLESS WIRELESS CHARGING - Designed to complement your wireless Bluetooth speaker’s cutting-edge tech.
LIGHTWEIGHT WALL MOUNT READY - Compact 0.24kg design with easy wall mounting for clutter-free setups.

This Nicer-S AC DC adapter replacement delivers a reliable 18V/2.5A output, compatible with Brookstone Big Blue Studio and Party Bluetooth speakers. Featuring dual plug types (Type A & C) and certified by CE, FCC, and RoHS, it ensures safe, eco-conscious charging. Lightweight and wall-mountable, it’s the perfect power companion to keep your wireless speaker energized for indoor and outdoor events.

Specifications

ASIN	B07D8ZT85N
Amperage	2.5 A
Best Sellers Rank	#33,818 in Electronics ( See Top 100 in Electronics ) #824 in Portable Bluetooth Speakers
Brand	Nicer-S
Built-In Media	Power adapter
Color	Blue
Compatible Devices	Speakers
Compatible Phone Models	Big Blue Studio Wireless Bluetooth Speaker mp-865156, mp-865158, Brookstone Big Blue Party Indoor-Outdoor Bluetooth Wireless Speaker 849504 Compatible Phone Models Big Blue Studio Wireless Bluetooth Speaker mp-865156, mp-865158, Brookstone Big Blue Party Indoor-Outdoor Bluetooth Wireless Speaker 849504 See more
Compatible Power Plug Type	Type A - 2 pin (North American), Type C
Connectivity Technology	Bluetooth,Wireless
Connector Type	Barrel Connector
Current	AC/DC
Current Rating	2.5 A
Customer Reviews	4.3 out of 5 stars 1,480 Reviews
Enclosure Material	Plastic
Frequency Range	60 hertz
Included Components	Power adapter
Input Voltage	240 volts
Item Weight	0.24 kg
Main Power Connector Type	2 Pin
Manufacturer	Nicer-S comshop
Mfr Part Number	4350993634
Model Number	4350993634
Mounting Type	Wall Mount
Number of Items	1
Number of Power Levels	1
Output Current	2.5 A
Output Voltage	18 volts
Power Plug	Type A - 2 pin (North American), Type C
Power Source	Corded Electric
Special Feature	Wireless Charging
Special Features	Wireless Charging
Specification Met	CE, RoHS
UPC	798863412435
Unit Count	1 Count
Wattage	45 watts

Reviews

B**E

Work with my pop audio

Perfect for for my Polk Audio.

21.12.2025

M**N

Perfect fit charger

Exactly what I needed

20.09.2026

A**Y

Power cord

This product also work but also didn't charge what I needed it for

11.01.2020

M**.

Works great

Great

28.12.2025

D**N

RECYCLED BOARD!! DO NOT BUY!!

This is an old recycled circuit board placed into a new case with cords. I had to open it to change the polarity on the output cord. The glue used to hold large components in place had dried up from age and crumbling into the case. The board is covered with corrosion and has a moldy smell. You can see where the old wires had been cut on the board.

5.03.2021

J**.

Good power supply

I bought this to replace a power supply for a sound bar that was lost in a move. It works just like the OEM power supply. Very happy with this purchase.

30.12.2021

S**A

Muy bien

13.09.2025

N**L

Just what I needed

Worked like a charm

17.06.2025

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NEW AC DC Adapter Charger Replacement for 18V Big Blue Studio Wireless Bluetooth Speaker, Fit for Brookstone Big Blue Party Indoor-Outdoor Bluetooth Wireless Speaker 849504

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Description

Specifications

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Common Questions