Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Langsdom BS21 Long Battery Life Magnetic Switch Neckband Bluetooth Headphones1. Equipped with high efficiency batteries for ultra long battery life, meeting all day usage needs. 2. Features a 13mm high dynamic moving coil driver, delivering vinyl grade sound quality with rich bass, an expansive soundstage, and highly restored vivid audio. 3. Supports ANC active noise cancellation, which accurately cancels out ambient noise by generating anti phase sound waves, creating a quiet private space. 4. Equipped with ENC call noise
1. Equipped with high-efficiency batteries for ultra-long battery life, meeting all-day usage needs.2. Features a 13mm high-dynamic moving coil driver, delivering vinyl-grade sound quality with rich bass, an expansive soundstage, and highly restored vivid audio.
3. Supports ANC active noise cancellation, which accurately cancels out ambient noise by generating anti-phase sound waves, creating a quiet private space.
4. Equipped with ENC call noise reduction algorithm and dual high-definition microphones, intelligently separating human voice from background noise and reducing wind noise for crystal-clear calls.
5. Convenient magnetic switch control: Earphones automatically power on and connect to paired devices when separated, and power off when attached together, eliminating button operations for easy use and storage.
6. Adopts Bluetooth 5.4 technology for enhanced signal penetration, reduced sound loss and latency; paired with a ceramic anti-interference antenna for stable connection in complex environments.
7. Supports e-sports game mode with dual-channel low-latency transmission, as low as 0.05 seconds latency for smoother audio-visual synchronization.
8. Waterproof coating + waterproof mesh design provides IP-rated water and sweat resistance, making it worry-free for sports use.
9. Neckband design fits comfortably around the neck and stays securely in place during running and other sports activities.
Product Specifications
1. Speaker Size: 13mm
2. Bluetooth Version: V5.4
3. Transmission Range: 10m
4. Frequency Range: 2.402-2.480GHz
5. Charging Voltage: DC5V
6. Battery Capacity: 300mAh
7. Charging Time: approx. 1 hour
8. Music Time: approx. 40 hours (ANC off), approx. 30 hours (ANC on) at 50% volume
Specification:
| Package Weight |
|
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
4.0 ★★★★★
Based on 1179 reviews
Sort
Product Reviews
★★★★★ 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.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2015
★★★★★ 1
Don't buy it
Format: Paperback
It does not prepare for the real test.
Using it is absolutely not enough to be approved with good grades.
Too expensive for what it offers.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2016
★★★★★ 5
Five Stars
Format: Paperback
great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2016
recommand products
Glenarm USA Newspapers Vector Illustration | Editable SVG, AI, EPS, PDF & PNG | City Vectors
11.00
Godfrey USA Newspapers Vector Illustration | Editable SVG, AI, EPS, PDF & PNG | City Vectors
11.00
Gnadenhutten USA Newspapers Vector Illustration | Editable SVG, AI, EPS, PDF & PNG | City Vectors
11.00
Glynn USA Newspapers Vector Illustration | Editable SVG, AI, EPS, PDF & PNG | City Vectors
11.00
Glen Haven USA Newspapers Vector Illustration | Editable SVG, AI, EPS, PDF & PNG | City Vectors
11.00