SKU: 44598676827

Roland MOBILE AC

Sale price$134.10 Regular price$149.00
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Description

Roland MOBILE ACYOUR FIRST ACOUSTIC GUITAR AMP If youre new to the world of acoustic guitar and would like to explore an extra dimension in sound, creativity, and convenience, the new MOBILE AC is your perfect amp. Optimized for acoustic guitar and designed to travel, the MOBILE AC delivers big sound in a package that can easily fit into a backpack. The amp can be used for up to 15 hours at a time via battery power, so you can take it anywhere. Simply plug in your

YOUR FIRST ACOUSTIC GUITAR AMP

If you’re new to the world of acoustic guitar and would like to explore an extra dimension in sound, creativity, and convenience, the new MOBILE AC is your perfect amp. Optimized for acoustic guitar and designed to travel, the MOBILE AC delivers big sound in a package that can easily fit into a backpack. The amp can be used for up to 15 hours at a time via battery power, so you can take it anywhere. Simply plug in your acoustic guitar, turn up the volume, and enjoy clean, clear, and surprisingly powerful, spacious stereo sound from a compact amp. You can also add deep stereo chorus or lush reverb effects, and you can incorporate a portable media player and microphone for sing-along fun. Strum your guitar and sing, play along with backing tracks, and enjoy the MOBILE AC at home or outdoors. It’s also a handy personal monitor for use on stage, with a big sound that defies its small size.

  • Five-watt (2.5+2.5) stereo amplifier for acoustic guitar
  • Simple, intuitive controls
  • 15 hours of use with six AA alkaline batteries
  • Microphone input for singing
  • Audio inputs for playing along with portable media players
  • Three-channel mixer with individual volume controls for microphone, guitar, and audio input
  • Chorus, Reverb, and Wide effects to add depth to your sound

Rich Stereo Sound

The MOBILE AC is small, but its two 4-inch speakers produce a surprisingly large and lush stereo sound. Activate the built-in stereo chorus — an effect that Roland is famous for — and immerse your guitar in a pool of thick, swirling sound. There’s also onboard reverb with a dedicated control knob, as well as a “Wide” effect for adding spaciousness to the sound. For the final polish, turn the TONE knob clockwise for a brighter tone, or counterclockwise for a milder sound.

Travel Friendly

Small enough to fit in a backpack and light enough for a child to carry, the MOBILE AC is ready to travel. Take it anywhere you go — to a friend’s house for a jam session, to a small outdoor gathering such as a camping trip, or on stage for use as a personal monitor. It can run for 15 hours at a time on six AA alkaline batteries, so you can perform in any location, indoors or out. An optional AC adapter is available should you prefer to plug it in. A handy carrying strap is included, and an optional carrying case is also available.

Strum, Sing, and Jam Along

Strap on your guitar, invite a friend, and grab a microphone — the MOBILE AC has inputs for guitar and mic with independent volume controls for each, and you can even add lush reverb and “Wide” effects to the instrument and voice for a polished, professional sound. There’s also a third input (with dedicated volume control) for connecting a portable media player such as an iPod, giving you an easy way to add backing tracks to your performances.

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SKU: 44598676827

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Jason Bolton
Houston, US
★★★★★ 5
Great book
Format: Paperback
Great book! It is helpful as I work towards my Masters of Science in Applied Artificial Intelligence
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Reviewed in the United States on December 20, 2025
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James Gianoglio
San Leandro, US
★★★★★ 5
Comprehensive Guide with Practical Insights
Format: Paperback
This is a solid book for understanding the art and science of working with LLMs and other generative AI models. I always struggled with getting the output I was looking for, and wasn't sure how best to "ask" the models for what I wanted. This book did a great job of laying out the strategies and practical guidance to craft the prompts. There were a lot of tips and tricks, but the overall understanding and framework around prompt engineering has been super useful.
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Reviewed in the United States on June 25, 2024
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Matt B
Dallas, US
★★★★★ 5
A must read!
Format: Paperback
Hands down, the best book on prompt engineering and implementing LLMs. Really enjoyed Michael and James deep dive. Whether you're technical or not, this book is foundational to a deeper understanding in how to properly explore and implement LLMs.
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Reviewed in the United States on June 25, 2024
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SR
San Leandro, US
★★★★★ 4
Helpful for GPT/LangChain framework
Format: Paperback
I applaud the authors for putting forth a comprehensive introduction in a rapidly evolving space. I absorbed a lot, helpful as I was developing a prototype — using open source methods. And that’s where I was disappointed. The LLM and examples are highly adapted to OpenAI’s GPT-x and the bulky LangChain framework, something not obvious until you dig in to the book. Sure, this may be where newbie demand was when the authors began writing. But as the open source models and OpenAI alternatives gain speed (e.g. Llama 3.1, Groq, etc.) this book may quickly need an updated and expanded version to stay relevant.
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Reviewed in the United States on August 7, 2024
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K. Wain
Whiting, US
★★★★★ 3
Good concepts, but uneven depth
Format: Paperback
Some helpful prompt frameworks, but parts felt repetitive and a few sections stayed too high-level for advanced users. Beginners will likely benefit more than experienced practitioners. If you’re new to prompt engineering it’s a decent starting point; if you’re already building structured prompts daily, it may feel light.
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Reviewed in the United States on January 17, 2026

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