Tech · Walmart
A portable speaker that punches above its size
Monster S320 Portable Bluetooth Speaker
A Monster portable Bluetooth speaker for taking the tunes anywhere, for anyone who wants sound on the go.
We're checking this price again; the store's own page has it now.
This deal was in an earlier drop. The store may have changed its price since.
Why it's a great deal
- Monster says the S320 delivers bold 20W sound with IPX7 waterproofing for beach, trail or home Monster
Every store we checked
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- WalmartNew
In stockSold by MCT Direct
$36.00Observed Oct 30, 2026, 6:33 PM - eBayNew
In stock
$65.00Observed Oct 30, 2026, 7:27 PM
About it
Monster S320 Bluetooth speaker is designed and engineered by Noel Lee and the Monster Design Team in the USA. From 40 years of sound engineering fine-tuned to deliver the most impactful music experience possible, with 40W audio performance, 360° stereo sound effect, truly enjoy the surround sound of the cinema, a truly unparalleled listening experience.
From Walmart
- 40W audio with 360° stereo sound effect, engineered by Noel Lee and the Monster Design Team
- Bluetooth 5.0 with True Wireless Stereo (TWS) pairing of two speakers for 80W stereo surround sound
- IPX7 waterproof rating: waterproof, shockproof and splash-proof
- Endures rain, snow, dust, mud, sand and submersion; suited to outdoor or shower use
- Rich bass, clear mids and vibrant highs for an immersive 360° sound
- Up to 32 hours of continuous playing time at medium volume from a full charge
- Returns
- Free holiday returns until Jan 31
- Shipping
- Free shipping; arrives tomorrow when ordered within the stated window, shipped to Sacramento 95829
Specs
- Outdoor
- Yes
- Frequency Response
- 140 MHz
- Bluetooth
- Bluetooth, Yes
- Connectivity Technology
- Bluetooth
- Ports And Interfaces
- 3.5mm aux input
- Wi-Fi
- No
- Assistant Support
- No voice assistant functionality
- Smart Functions
- Dual-device connectivity
- Speaker Placement
- Portable
- Audio Configuration
- 360-degree design