SKU: 49643776560

HKM-427411 Neck-Mounted Wireless Bluetooth Speaker with 7 Hours Playtime and Dual Channel Sound

Sale price$67.49 Regular price$74.99
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

HKM-427411 Neck-Mounted Wireless Bluetooth Speaker with 7 Hours Playtime and Dual Channel SoundIntroducing the HKM 427411 Neck Mounted Wireless Bluetooth Speaker, a perfect blend of comfort and audio excellence for those on the go. This innovative speaker is designed to provide a seamless listening experience, whether you're commuting, working out, or simply enjoying a moment of relaxation at home. With its dual channel sound system, the HKM 427411 delivers an impressive output power of 5W, allowing you to immerse yourself in rich and vibrant

Introducing the HKM-427411 Neck-Mounted Wireless Bluetooth Speaker, a perfect blend of comfort and audio excellence for those on the go. This innovative speaker is designed to provide a seamless listening experience, whether you're commuting, working out, or simply enjoying a moment of relaxation at home.

With its dual-channel sound system, the HKM-427411 delivers an impressive output power of 5W, allowing you to immerse yourself in rich and vibrant audio. The frequency response range of 40Hz to 20KHz ensures you can enjoy a complete spectrum of sound that caters to all your favorite musical genres and podcast listening.

The HKM-427411 features a robust battery capacity of 350 mAh, giving you up to 7 hours of continuous playtime. This means you can enjoy your entertainment without frequent interruptions, allowing for extended listening sessions. Plus, with an effective communication distance of up to 15 meters, you can move freely around your space without being tethered to your device.

Crafted from durable plastic, the HKM-427411 is lightweight and designed for maximum comfort. Its dimensions, measuring 45 * 73 * 28 mm on each side, ensure that it fits snugly around your neck, making it an ideal choice for daily commutes or workouts.

Included in your package are the speaker itself, a data cable for charging, and a manual to help you get started right away. Elevate your audio experience with the HKM-427411 Neck-Mounted Wireless Bluetooth Speaker, where sound meets practicality, delivering an enjoyable listening journey wherever you go.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 49643776560

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 1101 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jason Bolton
Belleville, US
★★★★★ 5
Great book
Format: Paperback
Great book! It is helpful as I work towards my Masters of Science in Applied Artificial Intelligence
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025
J
Verified Purchase
James Gianoglio
Houston, 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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2024
M
Verified Purchase
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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 25, 2024
S
Verified Purchase
SR
Bozeman, 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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 7, 2024
K
Verified Purchase
K. Wain
Lake Worth, 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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026

recommand products