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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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Description
USAMS BU12 TWS Half In-Ear Bluetooth 5.1 Wireless Earphones, USAMS BU121. Upgraded BT 5. 1, fast and stable connection. 2. Dual channel stereo, immersive HiFi sound quality. 3. Built in microphone, sensitive touch control. 4. Transparent shell, unique macaron color. Parameter: 1. Material: ABS+PC 2. BT version: 5. 1 3. Connection range: <=12 meters 4. Speaker diameter: 13mm 5. Speaker sensitivity: 115 + 3dB 6. Speaker Impedance: 32ohm 7. Speaker frequency response: 20Hz~20KHz 8. SNR: >70 9. Earbud weight: about 3g x2 10.
1. Upgraded BT 5.1, fast and stable connection.2. Dual-channel stereo, immersive HiFi sound quality.
3. Built-in microphone, sensitive touch control.
4. Transparent shell, unique macaron color.
Parameter:
1. Material: ABS+PC
2. BT version: 5.1
3. Connection range: <=12 meters
4. Speaker diameter: 13mm
5. Speaker sensitivity: 115 +/- 3dB
6. Speaker Impedance: 32ohm
7. Speaker frequency response: 20Hz~20KHz
8. SNR: >70
9. Earbud weight: about 3g x2
10. Earbud battery capacity: 30mAh
11. Playing time: about 5 hours
12. Calling time: about 4 hours
13. Earbud charging time: about 1 hour
14. Charging case weight: about 35.5g
15. Charging case battery capacity: 300mAh
16. Charging time for the case: about 1 hour
17. Charging case Input: 5V
18. Standby time: about 25 hours
19. Charging case size: 56*50*26.7mm
20. Compatibility: for iOS/Android devices with BT function
21. Including: Earbud x1 pair, Charging case x1, Type-C charging cable x1, User manual x1
Specification:
| Package Weight |
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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
4.0 ★★★★★
Based on 25 reviews
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Product Reviews
★★★★★ 5
Lasting longer than 6 months, longer than any bone to date.
Color: Mega Knot Bone, Size: X-Large
Finally a bone that has lasted longer than 6 moths so far. I know my dog is a chewer. Well worth the cost to not have to replace them as often.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 20, 2025
★★★★★ 5
Great quality
Color: Knuckle Bone, Size: XX-Large
Great quality. Our puppy is having a great time and it's holding up perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 9, 2025
★★★★★ 5
Do away with vet teeth cleaning. Great product.
Color: Monster Bone, Size: XX-Large
My large dogs love these. It keeps their teeth clean and no tarter or cavities after 4 years of using. It has even helped an adopted older dog to have stronger teeth. They don't ingest anything, so safe to chew on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 18, 2025
★★★★★ 4
Great for chewers
Color: Knuckle Bone, Size: XX-Large
I have a 13 month old 56 lb boxer/rottie mix who is a medium chewer and this bone is great for him. No splintering, doesn't make a mess, and hard enough to make him work without any danger of him breaking teeth, getting cut, or choking. We gave it to him a couple of weeks ago and based on wear I'm confident it will last him a long time (many months at least). I was a little hesitant about giving my animal a product that contained nylon, but after a scary experience giving a rawhide bone to a previous foster dog, I was told this was a much safer option and now I agree.
This bone is very dense and very hard, so it makes an awful noise when my dog drops it on my hardwood floor. We are also careful to make sure he doesn't drop it on our bare toes, because that would be quite unpleasant. Be aware that the chewed edges also get really rough because of the way the bone wears, so they can become a magnet for dog hairs or fabric threads. This hasn't been a problem for us (we just encourage our pup to chew it on his bed and take it away from him when we are watching a movie so the noise isn't bothersome), but it is good to know.
Update: We've had Winston for 5 months now and in that time he has gained 5 lbs of muscle. He loves his Nylabone! It is still going strong and I think he will be able to use this well through his one year adoptiversary. The only issue we have with this bone is that the edges can get sharp and sometimes will cut his mouth. He doesn't notice and just wants to keep chewing, but we usually take the bone away at that point for a bit. My boyfriend has taken the bone and used a power sander on it a few times now to remove all the sharp edges. We only have to to in once every couple of months but it makes a big difference.
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Reviewed in the United States on July 18, 2016
★★★★★ 5
Nice treat/toy
Color: Knuckle Bone, Size: XX-Large
Dogs love these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
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