Best in 7 days
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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9
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Description
3.7V, Li-ion, 2600mAh, Speaker battery fits Harman/kardon, Onyx Studio 3, 9.62WhCS HKE300SL Speaker Battery (2600mAh) Premium Replacement for Harman Kardon Onyx Studio 3 Enhance your audio experience with the Cameron Sino CS HKE300SL replacement battery, designed for optimal compatibility with the Harman Kardon Onyx Studio 3 speaker. Featuring a powerful 2600mAh capacity and 3. 7V Li ion cell, this battery delivers 9. 62Wh of reliable energy, ensuring extended playtime and crystal clear sound whether at home or on the go.
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
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 750 reviews
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Product Reviews
★★★★★ 4
Good flavor, acceptable results.
Flavor Name: Spearmint, Size: 1.31 Ounce
These work pretty good but don't last as long as I'd hoped for. Still a good buy though, much better than the store bought mouthwashes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 5
Great product
Flavor Name: Coconut Mint, Size: 8 Ounce
I love the product,it work ‘s to keep your teeth white .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
Leaves teeth feeling CLEAN!
Flavor Name: Coconut Mint, Size: 8 Ounce
I clench my teeth so my teeth break down easily. I cannot use other mouthwash as it causes canker sores and bleeding gums. This was quite minty but not over the top. After use my teeth felt soooooooo clean!! A must try with your daily oral routine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
I like it
Flavor Name: Coconut Mint, Size: 8 Ounce
I like it, it just a bit too minty for me but it’s better than listerine or the other hard stuff. This doesn’t burn like listerine or the others but it is a strong flavor after you spit it out.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Actually Works!!
I’ve tried a lot of products to whiten my teeth, and this is the only one that has really worked for me without causing any sensitivity. Both the Boka Fluoride-Free Whitening Toothpaste and the Boka Teeth Whitening Powder are very gentle on my teeth, which I really appreciate.
I’ve noticed a visible difference, and I love that I can get results without the discomfort that usually comes with whitening products. I would definitely recommend this to anyone looking for a gentler option for teeth whitening
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
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