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- USA
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
Hileo Hi20 Sleep Noise Reduction Wireless Bluetooth EarphoneProduct Features: 1: 6. 0 chip, high performance transmission continuously connected, stable pairing; 2: Long standby time, coupled with a large capacity charging case, can be used continuously for 20 hours; 3: ANC active noise reduction, clear communication; 4: Engineering design, multi dimensional comfort upgrade, fits snugly to the ear, no pain after long term use; 5: Multiple modes are provided in white noise to deeply assist sleep and improve
Product Features:1: 6.0 chip, high-performance transmission continuously connected, stable pairing;
2: Long standby time, coupled with a large capacity charging case, can be used continuously for 20 hours;
3: ANC active noise reduction, clear communication;
4: Engineering design, multi-dimensional comfort upgrade, fits snugly to the ear, no pain after long-term use;
5: Multiple modes are provided in white noise to deeply assist sleep and improve sleep quality;
6: Esports transmission with seamless delay and synchronized sound and image;
7: Multi platform compatibility for connecting various devices;
8. Can simultaneously connect 2 Bluetooth devices for quick switching.
Specifications：
1. Product Version：V6.0
2. Transmission distance：10M
3. Signal to Noise Ratio(S/N)：63Db
4. Impedance：16 Ohm +/- 10%
5. Frequency Response Range：20HZ~20KHZ
6. Rated Power：3mW
7. Maximum Power：5mW
8. Talking time：4.5Hour
9. Listening time：8Hour
10. Standby time：70Hour
11. Charging time：2Hour
12. Battery：35mAh，case 300 mAh
13. Charging Port：TYPE-C 5V/1A
14. Miniature design for easy and comfortable wear
15. Combines charging and storage in one, lightweight and compact
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.7 ★★★★★
Based on 611 reviews
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Product Reviews
★★★★★ 3
Book arrived with glue? Residue on the cover
Format: Paperback, Format: Paperback
Book arrived damaged. I ordered a new copy so it should have had no damage. The book is required for class so I don’t have the time to return it but you’d be better off buying it used from someone else and save some money.
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Reviewed in the United States on February 4, 2022
★★★★★ 5
Interesting and easy to understand
Format: Paperback
"As a visual learner, I have been looking for ways to help me better memorize pharmacology knowledge. Top 200 Drugs Made Easy is a perfect match for me! It is not only a pharmacology coloring book, but also an interactive learning experience. Through coloring and drawing, I can associate drug information with visual images, which has a significant memory effect. This entertaining way of learning makes me feel relaxed and happy during the learning process, and I no longer resist memorizing boring knowledge points."
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Reviewed in the United States on May 21, 2025
★★★★★ 5
NP Student Approved!
Format: Paperback
I’m in NP school and this book has been so helpful!! Not only does it have just the right information, but it’s fun to color! It’s a great supplement to my textbook and lectures.
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Reviewed in the United States on October 19, 2025
★★★★★ 5
Great for supplemental learning
Format: Paperback
This study guide is an interesting take on drug memorization, though the execution could be better. The coloring concept helps with memory retention, especially for visual learners trying to connect drug names with their uses and classifications. The organization by drug class is logical and helps build understanding of how related medications work.
The basic pharmacology information is accurate and the quick-reference format is handy for review. The "made easy" title fits - it breaks down complex medication information into manageable chunks. The coloring activities do help make dry content more engaging, though the quality of the illustrations varies.
Some drawbacks: the coloring spaces are sometimes too small for comfortable use, and the paper quality could be better - markers tend to bleed through. Several important newer drugs are missing, and some of the clinical information feels oversimplified. The binding isn't very durable - pages can come loose with regular use.
For students, this works best as a supplementary study tool rather than a primary resource. It's helpful for initial learning and quick review before exams, but you'll need more detailed sources for complete medication information. Consider using colored pencils instead of markers, and maybe reinforce the binding before heavy use.
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Reviewed in the United States on January 21, 2025
★★★★★ 5
Love
Format: Paperback
Great design, not boring, fun and educational! Perfect to help me memorize and learn in a fun, creative way. So many pages, I am pleased!
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Reviewed in the United States on August 14, 2025