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Description
2.4G Wireless Office Conference Tour Guide Explainer One-Way One-To-Many Explainer Microphone, YWI22 Transmitter, YWI22 ReceiverNote: Transmitter and receiver are selected separately and can be matched reasonably according to your needs 1. Operating temperature: 55 125 degrees Celsius 2. Talking distance: about 100 150m barrier free distance 3. Number of channels: 36 4. Frequency: 2. 4GHz 5. Charging interface: Type C 6. Charging Input: DC5V 1A 7. Material: ABS + display 8. Battery capacity: Transmitter: 1000mAh Receiver: 1000mAh 9. Size: Transmitter: about 13 x 5 x 2. 5cm
Note: Transmitter and receiver are selected separately and can be matched reasonably according to your needs
1. Operating temperature: 55 - 125 degrees Celsius
2. Talking distance: about 100-150m barrier-free distance
3. Number of channels: 36
4. Frequency: 2.4GHz
5. Charging interface: Type-C
6. Charging Input: DC5V 1A
7. Material: ABS + display
8. Battery capacity:
- Transmitter: 1000mAh
- Receiver: 1000mAh
9. Size:
- Transmitter: about 13 x 5 x 2.5cm
- Receiver: about 8.1 x 4.5 x 1.9cm
10. Weight:
- Transmitter: about 62.2g
- Receiver: about 42g
Features:
1. Wireless explainer/receiver mainly transmits the voice content through the device, and the receiver can realise one person to explain and many people to listen under the same channel
2. 2.4G frequency band, strong anti-interference ability, high confidentiality, multi-channel
3. Channel number, signal and other basic information are displayed through the OLED screen
4. Key, knob use, simple operation, beautiful and generous
5. Transmission distance is far, 100-150 metres without obstacle distance
Packing list:
- Transmitter/receiver x 1
- Microphone ( transmitter ) / Earphone ( receiver ) x 1
- Type-C charging cable x 1
- Lanyard x 1
- Instruction manual x 1
Specification:
| Package Weight |
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4.0 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
This book made me love my parents more
Format: Kindle
I loved the raw depictions of vietnamese history and human emotions. I recommend this book to anyone experiencing intergenerational trauma. 5 stars, this book helped me understand my father and mother just a little more, and that is priceless
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 25, 2025
★★★★★ 5
Excellent customer service
Format: Paperback
Totally recommendable.
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Reviewed in the United States on August 26, 2019
★★★★★ 5
Five Stars
Format: Paperback
This helped a lot for us to prepare for the SLATE exam.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 23, 2016
★★★★★ 5
Good
Format: Paperback
This is great! I like this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2016
★★★★★ 2
Good to have if you've never seen the iTEP exam, but don't rely on it to boost your scores
Format: Paperback
This book is good in that it comes with two practice tests: one in the beginning of the book, one in the end of the book. The grading rubric is helpful too. However, the actual guide part of the book, doesn't help too much with how to improve test scores. What I like least about this guide is that it won't tell you which questions you answered incorrectly on the practice exams. A good test prep guide will tell you what you answered incorrectly, and will tell you what logic to follow to get to the correct answer. In the reading passages, it would be nice to know where I can find evidence to justify the "correct" answer. In the grammar section, it would be nice to know which rule I'm violating. Any test guide should always come with some testing strategies. I.E. If this question is taking up too much time, skip it and go to the next one. This guide lacks simple strategies like that. Simple strategies like that could be useful when incorporated into this guide because there are certain sections on the exam that you can go back to previous questions, but some sections where the "back" button is disabled.
Overall, if you've never seen an iTEP exam before, this book is certainly helpful in that it will give you an idea of what you will be testing for. However, this book alone won't help you achieve a score of 6. The table of contents itself will tell you there are only 86 pages of actual content covering test material. That's not enough to cover how to excel in the exam.
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Reviewed in the United States on January 27, 2015