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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
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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:
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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
4.2 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 4
Comfy gorgeous
Size: 8.5, Color: Gold 710
Absolutely perfection! Color and comfort amazing. Wore them 8 hour event day so comfy.
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Reviewed in the United States on October 13, 2025
★★★★★ 5
Great Quality Natural Fabric Dress
Size: X-Large, Color: White
This dress was everything the reviews said - nice weight, well made, and great fabric. The suggested size matched my usual size, and it fit like a glove. That said, there was no extra room, and the fabric has no stretch.
I’m 5'9" and prefer long dresses to be closer to ankle length, but this one hit at an awkward length on me. For the price, it wasn’t worth keeping, though I do think it’s fairly priced for the quality. Nowadays it’s hard to find clothing in cotton or cotton/linen blends, so I really appreciate that it’s not made from synthetic fabric.
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Reviewed in the United States on September 3, 2025
★★★★★ 4
Disappointing second one with a damaged zipper
Size: Medium, Color: Iceberg Green
This is maybe the 5th Drop linen dress I have purcahsed different version for my two girls and I and this is the second one I have received with a damaged zipper. It is disappointing they fit well and are well made . I am not sure if the last two I have received were returned items.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Nice quality
Size: XX-Large, Color: Black
Very nice fit and material. I’m a size 14 & the XXL fits well - maybe a tad bit big, but I didn’t want it to be fit uncomfortably tight either. My only complaint is that the side zipper gets stuck right where the pocket is. But I am able to put the dress on without having to open & close the Ipper.
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Reviewed in the United States on June 23, 2025
★★★★★ 5
Gorgeous
Size: Large, Color: Black
I bought 2 of these dresses, they are adorable. They are well made, fully lined, quality product.
They fit so well and will be flattering on any figure.
I’m 5’10”, the length is perfect. Well below the knee.
A classic fit and cut
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Reviewed in the United States on June 15, 2025