Monster S310 Upgraded Bluetooth Speaker, 30W Portable Speaker True Wireless Stereo Pairing Deliver Dynamic Sound, IPX6 Waterproof, Bluetooth 5.2 Built-in Mic, 24H Playtime, for Party, Outdoor, Blue
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Sep 20 – Sep 21
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Features
- Pure Monster Sound: The Monster S310 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. Dynamics with substantial deep bass punch, clarity and details revealed, and no distortion at any level.
- Bluetooth Speakers: 30W True Wireless Stereo Pairing-connect two 30W Monster S310 speakers together through a single device to create independent left and right channels with 60W audio performance. 360 stereo sound effect, truly enjoy the surround sound of the cinema, a truly unparalleled listening experience.
- Portable Bluetooth Speaker: Bluetooth 5.2 Monster Wireless Bluetooth Speaker can connect to devices up to 100 feet away without interference even in difficult conditions. The Bluetooth 5.2 chip easily reads music playlists and connects to smart phones. It is a portable wireless Bluetooth speaker that is very suitable for outdoor sports and cycling sports.
- Speaker: Long battery life-With the top-of-the-line rechargeable li-ion battery,listen to up 24 hours of continuous music playback at the appropriate volume,so that music can be played non-stop from day to night.Let your work and study no longer be boring.
- Waterproof Speaker: The Monster waterproof Bluetooth speaker is resistant to splash, rain, gentle spray, therefore is applicable in shower room,by the pool or beach,or even rainy riding. Don't worry about weather and outdoor conditions. Become a rock music in your journey, A lifetime Monster Customer Service makes your purchase absolutely risk-free. Any questions please feel free to contact us, we will provide a premium service within 24 hours.
Brand: Monster
Item dimensions L x W x H: 1 x 1 x 1 inches
Connectivity Technology: Bluetooth
Color: Blue
Compatible Devices: Bluetooth-enabled devices, Desktop, Home Theater, Laptop, Television
Material: Plastic
Recommended Uses For Product: For Smartphones or Tablets, For Surround Sound Systems, For Televisions
Manufacturer: Monster
UPC: 810079706631
Product Dimensions: 1 x 1 x 1 inches
Item Weight: 1.39 pounds
Item model number: S310
Batteries: 1 Lithium Polymer batteries required. (included)
Date First Available: December 16, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sep 20 – Sep 21
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
The Monster S310 upgraded Bluetooth speaker delivers impressive 30W sound with deep bass and clear highs, making it perfect for music lovers. With true wireless stereo pairing, you can connect two speakers for an even bigger party experience. The IPX6 waterproof design makes it great for outdoor use—whether at the beach, camping, or poolside. Bluetooth 5.2 ensures a stable connection, and the built-in mic is handy for calls. Plus, the 24-hour playtime means you can enjoy music all day without worrying about charging. A stylish, reliable speaker for both indoor and outdoor fun!
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Reviewed in the United States on September 6, 2025 by saketh madishetty
I’m really impressed with the Monster S310 Bluetooth speaker! The sound quality is rich, powerful, and clear, with strong bass that easily fills a room or outdoor space. Pairing with Bluetooth 5.2 is quick and stable, and I love that it supports True Wireless Stereo for an even bigger sound. The waterproof design makes it perfect for the beach or poolside, and the 24-hour playtime means I don’t have to worry about recharging during long outings. Stylish, durable, and reliable — this is an excellent speaker for both parties and everyday use.
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Reviewed in the United States on September 6, 2025 by Amazon Customer
The media could not be loaded. The Monster S310 is a solid portable speaker. The sound is clear with good balance, and it’s loud enough for outdoor use without distortion. Battery life is great—I can get a full day of playback on a single charge. Pairing over Bluetooth is quick and stable, and the built-in mic is handy for short calls. The waterproof design is also a nice touch for using it by the pool or at the park. Overall, it’s a reliable speaker at a fair price.
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Reviewed in the United States on September 6, 2025 by Saurav Pantha
I recently picked up the Monster S310 Upgraded Bluetooth Speaker, and it has exceeded my expectations in almost every way. The 30W output delivers surprisingly powerful, dynamic sound for its size—clear highs, solid mids, and punchy bass that easily fills a room or outdoor space. Pairing two together in True Wireless Stereo mode makes the experience even better, creating a rich, immersive surround sound that feels much bigger than the speakers themselves. The Bluetooth 5.2 connection is stable and quick, with no annoying dropouts, and it easily remembers my devices. I also appreciate the built-in mic, which works well for hands-free calls—voices come through crisp and clear. One of the best features is the IPX6 waterproof rating. I’ve used it by the pool and on a camping trip, and it held up perfectly against splashes and light rain. Combine that with the 24-hour playtime, and it’s a great travel companion that doesn’t need constant charging. The design is sleek, and I love the blue finish—stylish without being flashy. It feels sturdy and well-made, yet still portable enough to toss in a backpack. Overall, the Monster S310 is a fantastic balance of power, durability, and convenience. Perfect for parties, outdoor adventures, or just everyday use. Highly recommended for anyone looking for a reliable portable speaker with serious sound.
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Reviewed in the United States on September 1, 2025 by David Perez
This speaker doesn't only look very sleek and modern - but it also functions very well! It's not very heavy, but i would say it is loud enough for its size. Music sounds good thru it and it connects through Bluetooth easily. Totally worth it!
Reviewed in the United States on September 6, 2025 by Mary
Great volume. Easy to use, I didn’t even have to read the manual. Chic appearance. Light weight, way to carry. Great quality. Great clarity. I could enjoy music and news podcast everywhere.
Reviewed in the United States on September 8, 2025 by WickedWitchOfEast WickedWitchOfEast
The design is sleek and portable, and the built-in mic makes it easy to take calls without missing a beat. For the price, this speaker offers amazing value. Highly recommended for anyone who wants a reliable and powerful portable speaker!
Reviewed in the United States on September 4, 2025 by Sepehr A Sepehr A
Don’t let the size fool you—this mini speaker is mighty! The sound is clear, loud, and has great bass for something so compact. I love how portable it is—I can take it anywhere, from the kitchen to workouts to the park. The battery lasts a long time, and it connects quickly with no issues. Perfect little speaker that packs a big punch!
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Reviewed in the United States on September 2, 2025 by Kourtney Castle