---
product_id: 711601079
title: "Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home"
brand: "monster"
price: "¥35485"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/711601079-monster-shock-plus-bluetooth-speaker-portable-speaker-with-30w-loud
store_origin: JP
region: Japan
---

# IPX6 water-resistant durability 30W powerful stereo sound Bluetooth 5.4 & TWS pairing Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home

**Brand:** monster
**Price:** ¥35485
**Availability:** ✅ In Stock

## Summary

> 🎶 Unleash the Monster sound—wherever life takes you!

## Quick Answers

- **What is this?** Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home by monster
- **How much does it cost?** ¥35485 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/711601079-monster-shock-plus-bluetooth-speaker-portable-speaker-with-30w-loud)

## Best For

- monster enthusiasts

## Why This Product

- Trusted monster brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Day 15H Playtime:** Keep your soundtrack alive from dawn to dusk with a marathon 15-hour battery life.
- • **Seamless Bluetooth 5.4 & TWS:** Connect effortlessly with ultra-stable Bluetooth 5.4 and double your impact with True Wireless Stereo pairing.
- • **Pure Monster Sound Experience:** Engineered with 40+ years of audio expertise for crystal-clear highs and deep bass that commands attention.
- • **Rugged IPX6 Waterproof Design:** Built to brave splashes, rain, and spills—perfect for your active, on-the-go lifestyle.
- • **Versatile Connectivity Options:** Stream wirelessly or plug in via AUX, TF card, or USB—your music, your rules.

## Overview

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.

## Description

Buy Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home: Portable Bluetooth Speakers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: 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.
Review: 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DSKFFLNW |
| Audio Driver Type | Dynamic Driver |
| Batteries | 1 A batteries required. (included) |
| Best Sellers Rank | #226,387 in Electronics ( See Top 100 in Electronics ) #4,325 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 |

## Product Details

- **Audio Output Mode:** Stereo
- **Brand:** Monster
- **Connectivity Technology:** Auxiliary, Bluetooth
- **Model Name:** S21
- **Speaker Maximum Output Power:** 30 Watts

## Images

![Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home - Image 1](https://m.media-amazon.com/images/I/71k06+OAp0L.jpg)
![Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home - Image 2](https://m.media-amazon.com/images/I/811ajtRZxhL.jpg)
![Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home - Image 3](https://m.media-amazon.com/images/I/81Zc+Wzh8fL.jpg)
![Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home - Image 4](https://m.media-amazon.com/images/I/81iKyuoRfgL.jpg)
![Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home - Image 5](https://m.media-amazon.com/images/I/81uOx7HjfYL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid Bluetooth speaker.
*by C***N on April 7, 2025*

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.

### ⭐⭐⭐ Not for speakerphone
*by R***M on April 28, 2025*

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.

### ⭐⭐⭐⭐ It's loud, missing a bit of bass
*by M***S on April 28, 2025*

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.

## Frequently Bought Together

- Monster Shock Plus Bluetooth Speaker, Portable Speaker with 30W Loud Stereo Sound, Bluetooth 5.4, TWS Pairing, 15H Playtime, Support AUX/TF Card, IPX6 Waterproof Wireless Speakers for Outdoor, Home
- FULMINARE Bluetooth Speaker with 26W HD Sound, Portable Speaker Up to 30H Playtime, AUX&TF-Card&USB Input, LED Lights, Speakers Bluetooth 5.3 Wireless for Home/Party/Outdoor, Birthday Gift (Black)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/711601079-monster-shock-plus-bluetooth-speaker-portable-speaker-with-30w-loud](https://www.desertcart.jp/products/711601079-monster-shock-plus-bluetooth-speaker-portable-speaker-with-30w-loud)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-08*