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Description
HOPESTAR A50 80W IPX6 Waterproof Portable Bluetooth Speaker Outdoor SubwooferParameters: 1. Bluetooth protocol: 5. 1 2. Effective distance: 10m 3. Output power: 80W 4. Function: waterproof, voice prompt, call function 5. Applicable scenes: car, fitness, outdoor, home, karaoke, square dance, etc. 6. Frequency range: 40HZ 20KHZ 7. Input power: 5V 2A 8. Power supply mode: built in lithium battery 9. Battery capacity: 8800mAh 10. Playing time: 6 8 hours 11. Play format: MP3 WMA 12. Appearance size: 408x160x217mm Features: 1.
Parameters:1. Bluetooth protocol: 5.1
2. Effective distance: 10m
3. Output power: 80W
4. Function: waterproof, voice prompt, call function
5. Applicable scenes: car, fitness, outdoor, home, karaoke, square dance, etc.
6. Frequency range: 40HZ-20KHZ
7. Input power: 5V 2A
8. Power supply mode: built-in lithium battery
9. Battery capacity: 8800mAh
10. Playing time: 6-8 hours
11. Play format: MP3 / WMA
12. Appearance size: 408x160x217mm
Features:
1. Support 1+1 serial port function
2. Support memory function
3. Support U disk/TF card/AUX playback mode
4. Support MP3/WAV/WMA/FLAC/APE music format decoding
5. IPX6 waterproof design, no fear of rain
6. High-fidelity speakers are used to make the sound more natural and delicate, bringing you an auditory feast-like experience
7. Built-in 8800mAh rechargeable lithium battery, which can play continuously for 6-8 hours, unlimited listening
Specification:
| Package Weight |
|
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- Free Standard Shipping on $100+ Orders to the USA.
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4.5 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 1
There's so much more than walking packed into this book.
Format: Kindle
Investing is more my husband's purview, but I loved Gordon Bernhardt's tale of his walk and life stories, and that made reading the parts about investing actually enjoyable for me. The author's arduous journey on the Camino was fascinating and I couldn't wait for his next experience. He did an outstanding job of weaving together his walk, his investment philosophies, and the life lessons he learned along the way.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 9, 2022
★★★★★ 5
Great introduction to Linux kernel development
Format: Kindle
This is a great book for those wanting to get into Linux kernel development. It has a good flow to the writing and doesn't try and bury you with too much deep knowledge as a beginner (just enough to give you the basics of the concepts being discussed). if you purchase this book there is a second book with more depth on programming provided free (on the books website github). I enjoyed this book so much I've purchased the second book for my kindle reader to support the author.
I've also purchased Kaiwan's book on Linux kernel debugging which is also an excellent read; giving you a good introduction to all the different methods/tools that can be used to help you debug those stubborn issues you'll inevitably encounter working as a kernel developer.
I can't wait to read the next edition of this book coming out in January; revised for the 6.x kernel. FYI, I've read this book and worked through all the examples on the latest Linux stable kernel (as of this review 6.4.x/6.5.x-rcX).
You won't regret getting this book if you want to start down the path of being a Linux kernel developer! I'd love to see a book from Kaiwan on developing module/drivers using Rust (with it's support now included in Linux kernel since 6.2). :-)
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Reviewed in the United States on August 10, 2023
★★★★★ 5
Very good overall
Format: Paperback
The content is very well written for beginner.
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Reviewed in the United States on June 25, 2024
★★★★★ 5
Great book
Format: Paperback
This is an excellent book for learning kernel programming on Linux. I highly recommend it. Also excellent condition.
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Reviewed in the United States on December 24, 2023
★★★★★ 5
Excellent book with information presented in great depth
Format: Paperback
I would highly recommend this book to people interested in learning the internal working of the Linux kernel and writing kernel level code like device drivers. Everything is covered in great detail and where impractical many resources are provided to further explore the topic. Definitely a must read!
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Reviewed in the United States on February 23, 2022
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