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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
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Description
VIKEFON BT-21 Bluetooth 5.0 Adapter Bluetooth Audio Transmitter Receiver1. Bluetooth version: V5. 0 2. Support protocol: RX supports A2DP, AVRCP, TX supports A2DP 3. Working frequency band: 2. 402GHz 2. 480GHz 4. Power level: Level 1 5. Sensitivity: 80dBm is less than 0. 1% BER 6. Signal to noise ratio: greater than or equal to 75dB 7. Distortion: less than or equal to 0. 1% 8. Support dual stream (TX mode supports one transmitter to connect two Bluetooth speakers or headphones at the same time to use one CODEC) 9.
1. Bluetooth version: V5.0
2. Support protocol: RX supports A2DP, AVRCP, TX supports A2DP
3. Working frequency band: 2.402GHz-2.480GHz
4. Power level: Level 1
5. Sensitivity: -80dBm is less than 0.1% BER
6. Signal to noise ratio: greater than or equal to 75dB
7. Distortion: less than or equal to 0.1%
8. Support dual stream (TX mode supports one transmitter to connect two Bluetooth speakers or headphones at the same time to use one CODEC)
9. Support multi-point connection (RX mode supports connection of two mobile phones)
10. Codec mode: TX is apt-X HD, apt-X LL, apt-X, SBC; RX is apt-X HD, apt-X LL, apt-X, SBC
11. Note on using APTX: apt-X HD CODEC is preferentially supported in single connection (the connected device must also support apt-X HD)
12. Built-in battery: 1000mAh
13. Charging current: about 200mA
14. Charging time: about 4.5 hours
15. Life time: RX is greater than 20 hours, TX averages about 15 hours
16. Bluetooth distance: greater than 80m (straight line without obstruction)
17. Charging method: Micro USB 5V/0.5A
18. Input/output connection: SPDIF interface, I2S AUX interface
19. Compatible: Android, IOS system phones, tablets and Bluetooth speakers or headphones that support A2DP protocol
20. Dimensions: 114 x 100 x 20mm
21. Weight: 270g
Specification:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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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
4.3 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 3
It Is Slim But Very Firm With Virtually No Give
Size: 2.7"H (Standard)
I bought this pillow hoping that it would lift my head gently but not push it forward. They said in the description that it was soft but it isn't, it's really quite firm and no ones head is going to sink into it hence it just pushes it up. Now if that's what you are looking for, then you've found your pillow. They were very good about the return and it is packed very well and very nicely.
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Reviewed in the United States on May 26, 2025
★★★★★ 5
Great toddler pillow
Size: 2.7"H (Standard)
We decided to get this for a toddler pillow for our son. I'm a little intense about what kinds of materials he is exposed to and I feel comfortable with latex. The pillow cover is synthetic and I'm not sure how I feel about that, but it is removable. It seems really comfortable for him--supportive but soft. He loves sleeping on it. And I don't have to worry about him burying his face in an ultra lofty pillow that would be making me nervous all night. I might buy one for myself and my husband at some point too!
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Reviewed in the United States on October 19, 2025
★★★★★ 1
Too thin...
Size: 2.7"H (Standard)
It is way too thin and doesn't even feel like real latex. Disappointed."
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Reviewed in the United States on May 26, 2026
★★★★★ 4
Good pillow
Size: 2.7"H (Standard)
Good
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Reviewed in the United States on March 17, 2026
★★★★★ 5
Buy if you love flat pillows
Love the fact the pillow can be separated into two sections. The thinner section is perfect for stomach sleeping; add the other piece for side sleeping. Add a down pillow for back sleeping. The pillow is fluffy, unlike the rock slab feeling of memory foam.
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Reviewed in the United States on March 31, 2026