







🎶 Unleash the Monster sound—wherever life takes you!
The Monster Shock Plus Bluetooth Speaker delivers a robust 30W stereo sound powered by advanced pure sound technology. Featuring Bluetooth 5.4 with True Wireless Stereo pairing, it offers seamless, lag-free connectivity. Its IPX6 water resistance and 15-hour battery life make it ideal for outdoor adventures, while multiple input options including AUX, TF card, and USB ensure versatile music playback. Built-in mic supports hands-free calls, making it a perfect companion for both work and play.











| ASIN | B0DSKFFLNW |
| Audio Driver Type | Dynamic Driver |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #224,954 in Electronics ( See Top 100 in Electronics ) #4,199 in Portable Bluetooth Speakers |
| Customer Reviews | 3.8 3.8 out of 5 stars (40) |
| Date First Available | March 10, 2025 |
| Is Waterproof | true |
| Item Weight | 1.85 pounds |
| Item model number | S21 |
| Manufacturer | Monster |
| Number of Batteries | 1 A batteries required. (included) |
| Power Source | Battery Powered |
| Product Dimensions | 1 x 1 x 1 inches |
| Speaker Type | Portable Bluetooth Speaker |
| Style | Speaker-Black |
| Unit Count | 1.0 Count |
C**N
Solid Bluetooth speaker.
This speaker has worked really well for me. It sounds great and can get very loud when it’s all the way up. The bass sounds really good as well. The battery life is strong too. I have never completely drained the battery and I’ve used it for up to 4 hours at a time so far. This is a great speaker if you are looking for a quality Bluetooth speaker.
R**M
Not for speakerphone
Ok as a speaker. Nice that you can pair two for stereo. A little bass heavy, so depending on your taste in music that may be good or bad. Generally muffled sound and almost unusable microphone for speakerphone use. Suspect related to waterproofing. If you want a speakerphone, don't buy this one. Seems reasonably priced for what it is.
M**S
It's loud, missing a bit of bass
Right off the bat, this is a great deal based on the brand and quality of the outside material. Comes with a lanyard, connects easily, and the battery seems last forever. There are your standards ports for in, such as AUX, tf card (mini SD), USB, and USB-C for charging. It's large, but not heavy at all, and it looks great anywhere you place it. With that being said, and even though it uses the latest Bluetooth implementation, it lacks a bit of bass but remains loud. This would make for a great loudspeaker as it amplifies voice tremendously well (makes for a heck of a speaker phone), but I was surprised that the bass on it was a little less than your standard home assistant base (not talking about anything mini, talking about the full size home assistants). With that being said, it connected easily to several home assistants. This is a great deal for the price, but it does lack that rich bass if that's what you're looking for.
D**E
Couldn’t be happier! Bought 2 Speakers and makes one hell of a surround sound! Highly Recommend!
Been looking for Bluetooth speakers that can connect together and make a surround sound type environment and we came across this speaker and it was a lightning deal usually 189$ and we paid 39$. Was a little skeptical because it was cheap but we already have a monster party speaker which kicks ass so said screw it and ordered two. Just gonna say I think we got a steal.. got the two speakers connected at the moment blasting some jams and just gonna say we LOVE THEM! So happy we took the chance and got them. We are gonna use these at camp out side so we can hear music all around the site! Not a whole lot of bass but just enough and when at full blast the sound is so clear can’t say enough how impressed and happy we are. I highly recommend this speaker I would buy again a few times!
A**R
MONSTER SHOCK PLUS nope!
Would like to return it. It’s not that loud for as big as it is.The Oontz Angle 3 to me sounds louder and a better quality.The Anker Soundcore 2 is also a better speaker. I really wanted to like this Monster speaker. The cabinet is nice ,where I believe they failed was the speakers inside the cabinet. so I would like to return the item but it’s more of a hassle so for your sake, don’t waste your 40 bucks. I’ll take the loss on this one for you folks
R**R
Love the product!
Amazing speakers! They are incredible loud at a high volume but you can adjust as necessary. Easy to use and charge and great for parties/movies/picnic etc. we love our product so much and we use it all the time. It’s also compact so you can travel with it as well. 100% recommended!
C**.
Low-quality
I bought this for $40 on sale from $200 and I still don’t think it was worth it. The sound is on par with $20 Bluetooth speakers. The housing is cheap, thin plastic. The buttons are all uniform and unintuitive. The is nothing substantial about it in any way. Anyone buying this at $200 is getting totally screwed. This thing likely cost less than $10 to make in China.
G**.
great speaker
great sounding speaker for the price, easily connects to device.
Trustpilot
2 months ago
2 weeks ago