Pros
High quality audio: Crisp and balanced sound.
Long battery life: Over 20 hours of max volume.
Fast charging: USB A and USB C ports.
Cons
Battery usage higher.
Tech specs
color | Orange/Black |
controller type | Battery Powered |
number of items | 1 |
surround sound channel configuration | 4.2 |
battery life | 20 Hours |
wireless communication technology | Bluetooth |
water resistance level | Water Resistant |
customer reviews | 4.6 4.6 out of 5 stars 454 ratings 4.6 out of 5 stars |
speaker maximum output power | 10 Watts |
unit count | 1.0 Count |
connectivity protocol | Bluetooth |
department | Unisex-Adult |
charging time | 20 Hours |
product dimensions | 2.34D x 5.46W x 5.39H |
batteries | 2 AA batteries required. |
item weight | 1.4 pounds |
power source | Battery Powered |
speaker size | 58 Centimeters |
is waterproof | FALSE |
mounting type | Plug Mount |
number of batteries | 2 AA batteries required. |

Product Overview
I recently had the opportunity to use the Klein Tools AEPJS3 Bluetooth 4.2 Speaker for a few weeks and was very impressed with its performance. Im a professional reviewer who has used and reviewed many products, so I was eager to test out this one.
The first thing that struck me about the speaker was its design. Its rugged and dust/water resistant with an IP54 rating and 6.6 ft 2m drop protection, making it ideal for harsh environments. The AEPJS3 also comes with an integrated storable hook for hanging on nails or screws, or it can be mounted magnetically to metal surfaces thanks to embedded magnets. Plus, you can daisy chain two AEPJS3 speakers together wirelessly for 20W total output sound pretty impressive.
In terms of sound quality, I wasnt expecting too much from such a small speaker but I was pleasantly surprised. The AEPJS3 delivers crisp, balanced sound from its dynamic 10W driver and passive radiator, plus deep bass that really makes your music come alive. The Bluetooth 4.2 technology gives you up to 100ft of wireless range to all Bluetooth compliant devices, so you can take your music wherever you go without worrying about losing connection.

The AEPJS3 also has a long runtime of over 20 hours at 70 of max SPL volume thanks to its rechargeable Li Ion battery, plus it has a convenient charge out feature for charging smartphones, tablets or other small devices via USB A and USB C ports very handy if youre in need of a quick boost!
Overall, Im highly impressed with Klein Tools AEPJS3 Bluetooth 4.2 Speaker and would highly recommend it to anyone looking for high quality audio in a rugged yet portable package that is perfect for any environment. Whether youre a professional DJ or just want powerful sound on the go, the AEPJS3 is definitely worth checking out!
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- What is the sound quality of this speaker?
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- Is this speaker dust and water resistant?
- Can I daisy chain speakers together with this one?
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