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This hour's deals
Monster
Monster Bluetooth Speaker
−52%
Tech · Walmart

Monster sound in a pocket-sized speaker

Monster Bluetooth Speaker

A portable Bluetooth speaker from Monster for picnics, patios and road trips.

Deal score 5.8 · Good deal
$38.40$80.00 Walmart's regular price

You save $41.60 at Walmart

Deal.ai's agents found this deal on November 9. The store may have changed its price since.

Why it's a great deal

  • Walmart lists its regular price at $80.00: 52% off by its own figures
Visit Walmart

Every store we checked

  • WalmartNew

    In stockSold by MCT Direct

    $38.40Observed at 7:57 AM
    Visit Walmart
  • eBayNew

    Availability unknown

    $277.83Observed Nov 5, 2026, 4:28 PM
    Visit eBay

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Price history and every store's price →

From Walmart

  • Dynamic Audio: engineered in the USA, delivers a fine-tuned, impactful music experience with deep bass punch, clear details and no audio distortion
  • True Stereo Pairing: connect two 30W Monster S310 speakers for a 60W true wireless stereo experience with independent left and right channels and a 360-degree s
  • Effortless Connectivity: Bluetooth 5.2 for faster connections and a great wireless range, automatically reconnecting to your last paired device
  • Extended Playtime: rechargeable li-ion battery provides up to 24 hours of continuous music playback at an appropriate volume
  • Waterproof Durability: IPX6 water resistance protects against splashes, rain and gentle sprays, suitable for outdoor use
  • Built-in mic
Returns
Free Holiday returns until Jan 31
Shipping
Free shipping; arrives Nov 7 if ordered within 7 hr 41 min

Specs

Wireless
Yes
Portable
Yes
Connectivity
Bluetooth
Max Wattage
30 W

About the Monster Bluetooth Speaker

The Monster S310 is a portable 30W Bluetooth speaker with Bluetooth 5.2, a built-in mic, and IPX6 water resistance. It can pair with a second S310 for 60W true stereo with separate left and right channels. Monster rates the rechargeable battery at up to 24 hours at moderate volume. It suits outdoor use and buyers who want a loud, low-cost 30W speaker, though it is Bluetooth only and its small cabinet limits bass next to larger rivals.

Best forOutdoor and patio use where splashes are likelyBuyers who want loud stereo sound from two small speakersBudget shoppers wanting a 30W speakerPairing with a phone for calls via the built-in mic
Pros
  • IPX6 handles rain and splashes
  • Bluetooth 5.2 with automatic reconnect to the last device
  • Stereo pairing of two units gives 60W and separate channels
  • Up to 24 hours of playback at moderate volume
  • Built-in mic for hands-free calls
  • 30W output is high for its class

More deals like this

  • All Monster deals and products
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Price facts

  • This deal was $38.40 at Walmart on Nov 9.
  • Lowest price today: $38.40 at Walmart (checked Nov 9, 2026).
  • Checked at 2 stores.

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Cons
  • 24-hour battery claim assumes low-to-moderate volume
  • IPX6 resists sprays but is not rated for submersion
  • Stereo mode requires buying a second S310
  • No aux or USB playback listed; Bluetooth only
  • Bass punch is limited by the small cabinet size

Questions and answers

How do I get stereo sound from it?
Pair two Monster S310 speakers together. Each keeps its own left or right channel, and the pair runs at 60W total.
Can I take it in the pool or rain?
It carries an IPX6 rating, which covers splashes, rain and sprays. It is not rated for being dropped in water or submerged.
Does the 24-hour battery claim hold up?
Monster states up to 24 hours at an appropriate volume, meaning moderate levels. Expect noticeably less at high volume.
What is in the box?
The speaker and its rechargeable battery are included. Check the listing for the charging cable, since the page does not spell out the full accessory list.
Does it have an aux input or a mic?
It has a built-in microphone for calls. The listed connectivity is Bluetooth only, with no aux or USB playback mentioned.
Is the Monster S310 worth it?
It is a low-cost 30W IPX6 speaker with Bluetooth 5.2 and a built-in mic. The value depends on whether you need stereo pairing, since that requires a second unit.
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