Monster S360 Portable Bluetooth Speaker, 15 W

The Monster S360 is a portable Bluetooth speaker with a listed 15-watt output, stereo mode and an IPX7 waterproof claim. It is positioned for portable listening, with claimed playback up to 20 hours, colorful lights and wireless stereo pairing with a second Monster speaker.

At a glance

The listing claims up to 20 hours of playback. Actual runtime conditions are not specified.
IPX7 waterproofing is claimed, and the feature text also says the speaker can float.
Two Monster speakers can be paired wirelessly for left-right stereo, according to the listing.
A carrying strap and colorful lighting are described in the feature text.

Price

$29.99Save 75%

Reference price: ~~$119.99~~

Price checked: Nov 14, 2026

View offer Ahead of Black FridayExplore the selection

Often bought together

Monster S150 Speaker, IPX7 Waterproof Wireless Speaker, 24W Stereo Sound with Pure Bass, Bluetooth 6.0, TWS Pairing, HD Calling, 20H Playtime, RGB Lights Perfect for Outdoor, Party, Beach, Home, Gifts

$29.99

Pros and cons

Pros

The stated 15-watt output and stereo mode provide concrete audio specifications for comparing compact speakers.
The listing's waterproof claim and described strap suit buyers looking for a speaker to carry outdoors.

Technical specifications

8 specifications

Identity
Brand	Monster
Model	S360
Color	Black

Audio and connectivity
Maximum output power	15 watts
Audio output mode	Stereo
Wireless connection listed	Bluetooth

Design and protection
Additional features	Lightweight, Waterproof
Waterproof	true

What to know before buying

Listing details to confirm

The title claims Bluetooth 6.0, TF-card support and hands-free calling, while the detailed specifications only confirm Bluetooth generally. Verify those specific functions on the selected listing. The up-to-20-hour playback, IPX7 rating, floating claim, included strap and TWS pairing are feature-text claims, not independently verified specifications. The listing does not explain the conditions for its battery estimate.

Who is it for?

A good fit for

Buyers seeking a compact Bluetooth speaker for home, travel or outdoor listening.
People who want claimed waterproofing and a carry strap for portable use.
Listeners interested in pairing two Monster speakers for left-right stereo.

Less suited to

Buyers who need independently confirmed battery life, water protection or Bluetooth version.
Shoppers who require confirmed TF-card playback or hands-free calling without checking the selected listing.

Monster S360 Portable Bluetooth Speaker, 15 W · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.1 / 5 · 7 ratings

5 stars79%79%
4 stars0%0%
3 stars0%0%
2 stars0%0%
1 star21%21%

The supplied evidence contains aggregate ratings but no customer-comment summary. The ratings are mixed, with a majority in the five-star category and a notable one-star share, but the small number of ratings cannot establish why customers responded as they did or how the speaker performs. Use the stated output, connectivity and listing claims to judge fit, and treat the claimed battery life and waterproofing as unverified.

Frequently asked questions

How powerful is the Monster S360?

The detailed specifications list a maximum output power of 15 watts and stereo output mode. Actual loudness and sound quality are not established by those figures.

Can two S360 speakers play as a stereo pair?

The feature text claims that two Monster speakers can pair wirelessly for left-right stereo. Confirm compatibility and operation for the selected units before buying.

Is the S360 suitable for wet settings?

The listing claims IPX7 waterproofing and says the speaker can float. These are listing claims, so check the product details and instructions for the conditions they cover.

Does it support TF cards and hands-free calls?

The title claims TF-card support and hands-free calling, but the detailed specifications only confirm Bluetooth connectivity. Verify those features on the selected listing.