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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
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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
4.5 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Will purchase again
Size: 6 in, Color: Blue
Dogs love this. Chew-on-able, and durable.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Good buy
Size: 6 in, Color: Blue
A winner with our GSD. He’s not a super aggressive chewer but it has still held up and is a favorite.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Terrific toy for heavy chewers
Size: 6 in, Color: Blue
My dog loves this! Chews and plays with it constantly. These will last a long time, however, eventually they begin to break down. THEN GET ANOTHER, lasted a couple months with constant chewing.
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Reviewed in the United States on August 29, 2025
★★★★★ 3
My dog doesn't like it
Size: 5 in, Color: Orange
My dog wasn't a fan of this at all. He was curious about it, probably because he could smell it, but he wasn't sure about chewing it.
It could be because his teeth squeak against it? Or maybe it has an odd texture? I don't know
But this has sat in the toy bin untouched since the day we got it
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Reviewed in the United States on October 13, 2025
★★★★★ 4
Not for older dogs
Size: 6 in, Color: Blue
Item was on point as described, but my elderly dog was not interested.
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Reviewed in the United States on March 2, 2026