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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
H3 Mobile Computer Universal Wireless Bluetooth Headset, H3 White, H3 Black, H3 Khaki1. Shocking bass, HiFi single sound, immersive experience, high definition microphone 2. Dual core power speaker, 40mm large size, strong bass 3. Lightweight and durable, foldable storage, long lasting battery life 4. Enhanced call sound effects, CVC HD microphone 5. Bluetooth 5. 0 chip, fast connection, stable transmission, stable signal 6. High quality protein earmuffs, comfortable to block noise 7. AUX audio jack, TF card, multiple usage 8. Soft
1. Shocking bass, HiFi single sound, immersive experience, high-definition microphone
2. Dual-core power speaker, 40mm large size, strong bass
3. Lightweight and durable, foldable storage, long-lasting battery life
4. Enhanced call sound effects, CVC HD microphone
5. Bluetooth 5.0 chip, fast connection, stable transmission, stable signal
6. High-quality protein earmuffs, comfortable to block noise
7. AUX audio jack, TF card, multiple usage
8. Soft and skin-friendly, with large earmuffs that surround the ears, fit the ears without feeling, and are comfortable to wear
9. Frequency response: 20-20000Hz
10. Battery capacity: 400mah
11. Power supply mode: USB charging / built-in lithium battery
12. Transmission range: 10 meters
13. How to use: head-mounted
14. Use time: about 12 hours
15. Standby time: about 300 hours
16. Rated power: 5W
17. Rated current: 1A
18. Charging voltage: DC 5V
19. Material: sponge + ABS + electroplating
20. Channel: Stereo
21. Impedance: 32 ohms
22. Sensitivity: 85dB
23. Packing list: color box + earphone + charging cable + audio cable + manual
24. Weight: about 340g
Specification:
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4.4 ★★★★★
Based on 1601 reviews
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Product Reviews
★★★★★ 5
All around helpful---worth the money!
Format: Paperback
This guide has been most helpful for all the folks I help prepare for the iTEP test! It gives insight into what each section of the test is looking for along with examples and great tips about actually TAKING the test. In the Writing and Speaking sections, it also gives sample scores and comments from the Master Grader which is very helpful too.
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Reviewed in the United States on August 9, 2019
★★★★★ 5
Comprehensive, clear and coherent!
Format: Paperback
The iTEP Practice Guide combines a no-nonsense approach to the specific iTEP tests and at the same time offers exercises that task the student with what they need to know. Exercises not only serve the purpose of scoring well, but the overall approach is communicative competence. We use the text in our group and one-to-one classes with very positive--and lasting--results.
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Reviewed in the United States on July 23, 2019
★★★★★ 1
No recomiendo
Format: Paperback
Muy malo, no vine completo, además se demoró mucho más de lo que decía al momento de comprarlo. Solo aplazaban la fecha de entrega sin consultar cómo afectaba al cliente. Yo tuve que presentar el examen sin el libro, porque no llegó en la fecha que decía al comprarlo y después se cambió 3 veces la fecha, casi cumpliendo el mes.
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Reviewed in the United States on December 30, 2025
★★★★★ 5
Great Book
Format: Hardcover
Great book
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Reviewed in the United States on July 2, 2025
★★★★★ 5
Great read. Tons of info.
Format: Hardcover
We really like this book. A great background and detailed info on this topic. Really like the real-world examples and application. Pretty exhaustive, as far as that is possible given the topic. Also, quite easy to read, although I confess that if from an engineer's perspective.
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Reviewed in the United States on July 1, 2021