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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
HQ-UD21 3 in 1 Folding Mobile Phone Watch Multi-Function Charging Stand Wireless Charger for iPhones & Apple Watch & Airpods, HQ-UD211. Suitable for simultaneous charging of iPhone watch headphones 2. Requires QC2. 0 3. 0 adapter 3. The built in protection measures can prevent overcharging, overcurrent and overvoltage protection, temperature control and foreign body detection, and protect the equipment battery from overcharging damage 4. Silicone material, will not scratch the device, will not block the screen or edges 5. Simple installation 6. Hidden cables keep the desk or
1. Suitable for simultaneous charging of iPhone/watch/headphones2. Requires QC2.0/3.0 adapter
3. The built-in protection measures can prevent overcharging, overcurrent and overvoltage protection, temperature control and foreign body detection, and protect the equipment battery from overcharging damage
4. Silicone material, will not scratch the device, will not block the screen or edges
5. Simple installation
6. Hidden cables keep the desk or bedside table in order
Note:
1. This watch wireless charging is only suitable for Apple Watch 1-5 generation, other watch models do not support wireless charging
Product parameters:
1. Input current: 9V-2A (please use QC3.0 fast charge, or 9V power supply)
2. Mobile phone wireless charging output: 5W/7.5W/10W Max
3. Headphone wireless charging output: 5W Max
4. Watch wireless charging output: 2W Max
5. Material: ABS+PC fireproof material
6. USB cable length: 1.1m
7. Product size: 180x98x87mm
8. Product weight: 240g
Specification:
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4.4 ★★★★★
Based on 1056 reviews
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Product Reviews
★★★★★ 5
Very good!
Format: Paperback
Book worth gold I love it! I will read it again! I recommend you buy it! Open your mind and make finances 🧠✨️
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Reviewed in the United States on April 1, 2026
★★★★★ 4
8.5 de 10
Format: Kindle
Lenguaje solo para profesionales y no para principiantes. Lo demás es perfecto con 4 estrellas ya que hasta lloré 3 veces ...
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Interesting
Format: Paperback
Product with very good quality, its description matches the website.
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Reviewed in the United States on April 11, 2026
★★★★★ 5
A wonderful primer for those discovering the amazing world of generative AI
Format: Paperback, Format: Paperback
Somewhere in the past year, ChatGPT has gone from "cool, interesting, amusing" to a massively valuable work assistant capable of writing Python scripts, analysing data, and doing lots, lots, more. The key to this? The rapid evolution of OpenAI's GPT models and making my first forays into prompt engineering.
If I thought I was getting good, though, this book took me reminded me that I'm just scratching the surface. Halfway through the first chapter I was already furiously scribbling notes in the margins for what I could do better with my prompt writing and by the end of the text I felt like I had gotten a very good grounding - not just in GPTs specifically but in the bigger picture of how these hugely powerful tools were trained and came to maturity.
I imagine that few will argue with my assertion that there is lots of hyperbole and "noise" in the AI space right now which, as ever, makes it hard to pick out the signal from the noise. Which is precisely why I sought out an O'Reilly title and I'm very glad that I did.
Thorough, excellent, and I hope that this edition will be the first of many. As this rapidly maturing field scales and matures I think that prompt engineering will be an essential discipline to master. Pick up this text to get a good foothold on things.
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Reviewed in the United States on August 3, 2024
★★★★★ 4
Understanding AI prompts as a science
Format: Audiobook
Prompt engineering is the art and science of finding the right words to generate the right responses from artificial intelligence (AI). It's becoming a skill in-demand in today's workplaces. It's also becoming an essential skill for life. To understand prompt engineering, you must understand how AI tools understand their inputs. This book explains that to you in many forms.
It covers prompting as it intersects all the major AI disciplines, like general prompts (as in a ChatBot), fine-tuning, and retrieval-augmented generation (RAG). It also introduces how prompting intersects a couple of image-generation tools.
As a scientist, I appreciate the theoretical approach to these practical matters. Too many people are hacks at AI these days, and any technical understanding can rapidly advance an individual's effectiveness. Prompt engineering is often made fun of as a "soft" topic, but as this book demonstrates, it intersects all the major AI areas. Presumably less garbage in means less garbage out. This book shows how you can make that take place.
As typical for O'Reilly materials, this book appeals to people who desire an intermediate-to-advanced understanding of how AI works. It's not for the casual user. Anyone technical involved in professional knowledge generation using AI can benefit from understanding the dynamics "under the hood." It's a good, though perhaps not ground-breaking, textbook for those of us unable to take a class in the subject. Prompt engineering may be a soft topic to many, but books like this ground the field in the science that can make or break a digital or software product.
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Reviewed in the United States on December 13, 2025