Tech · Walmart
Pocket-size sound for the patio, the beach, the wherever
Monster S320 Portable Bluetooth Speaker
Monster's portable Bluetooth speaker is an easy grab for anyone who wants music on the move.
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 is a compact, high-powered speaker with 20W output and IPX7 waterproof protection for beach, trail or home Monster
Every store we checked
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- WalmartNew
In stockSold by MCT Direct
$35.99Observed at 4:27 PM - eBayPre-owned
In stock
$60.00Observed at 6:54 AM - 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