CB3 Ultra Slim Review

Image of CB3 Ultra Slim
We get commissions for purchases made through links in this post.

Table of Contents:

Have you ever thought of buying a loud but small wireless speaker? A wireless speaker that you can carry in your pocket, but can still blow everybody’s mind. A wireless speaker that’s slim, with loud music, and is cheap. Well, I have news for you pal. The CB3 Ultra Slim is the wireless speaker for you.


This speaker is ultra-lightweight and ultra-portable, for it only weighs 0.8 ounces. It’s very easy to carry around. This is even the world’s slimmest wireless speaker of 12- watts. It’s perfect for people who likes to take their loud music wherever they want to go. Moreover, it’s Bluetooth compatible which makes it easy to use with your phone, smartphone, and tablet. If you want to listen to music all to yourself, you can use the auxiliary input which is 3.5mm in size.

Check Today’s Price

No products found.

Sound Quality

This speaker is loud for its size. It’s so slim that you wouldn’t even think that it has enough power to produce serious loud music. The CB3 Ultra Slim also has an excellent Bluetooth connection.


Its Bluetooth connectivity is undoubtedly reliable. It also looks visually pleasing. The design is sleek and slim, in fact, you can even give it as a present, and no one would ever complain.


When purchasing this speaker, you will receive a free carrying pouch that you can use for storage of your wireless speaker. The speaker has an 8-hour battery life on one full charge. It also has an SD card slot where you insert a micro SD into, and play music straight from it. Plus, above all of these features, you would get a 1-year free warranty for the speaker.

No products found.

The CB3 Ultra Slim is an excellent value for its price. It has an excellent sound quality, ultra-portable, and durable.

Anyone who’ll purchase it would get the value of their money. You may say that you can buy a cheaper wireless speaker, but they have been built it with the cheapest stuff possible. With the CB3 Ultra Slim, it’s different. They have made it with an aluminum exterior. It’s quite durable for its price, plus they’ll give you a year warranty, which makes it even better.

If you’re searching for a wireless speaker that’s inexpensive, then you should buy yourself a CB3 Ultra Slim. With its massive volume output and excellent sound quality, you’d surely enjoy your money’s worth. It’s durable, cheap, loud, and portable, making it your perfect music companion.


The sound is boomy, which makes it excellent to the ears. And even if it is a cheap wireless speaker, its build is durable.

Product Comparison



  • DimensionDimension
  • WeightWeight
  • BatteryBattery
  • Battery LifeBattery Life
  • CableCable
  • Charging TimeCharging Time
  • ManufacturerManufacturer
  • OriginOrigin
  • PricePrice

  • Dimension4.7 x 9.4 x 2 Inches
  • Weight0.8 Ounces
  • BatteryRechargeable Battery
  • Battery LifeOn use: 8 hours
  • CableIncluded
  • Charging Time
  • ManufacturerCB3 Audio
  • Origin
  • Price$

No products found.

WirelessSpeakers.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.

Last update on 2022-08-09 at 16:18 / Affiliate links / Images from Amazon Product Advertising API

1 Top