SKU: 52914097327

VIKEFON BT-21 Bluetooth 5.0 Adapter Bluetooth Audio Transmitter Receiver

Sale price$36.00 Regular price$40.00
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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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:
Package Weight
One Package Weight 0.27kgs / 0.59lb
One Package Size 15cm * 14cm * 5cm / 5.91inch * 5.51inch * 1.97inch
Qty per Carton 106
Carton Weight 30.00kgs / 66.14lb
Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch
Loading Container 20GP: 177 cartons * 106 pcs = 18762 pcs
40HQ: 412 cartons * 106 pcs = 43672 pcs

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
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SKU: 52914097327

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4.4 ★★★★★
Based on 2201 reviews
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Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Border Collie Approved: Easy to Clean, Durable, and Great Bounce
Size: Medium (2.5"), Style: Fetch Pack 2
These are the best balls out there for dogs. These fit great in the chuck-it ball launcher, which we need to wear out my border collie. They fit her mouth properly and, most importantly, do not absorb all the spit or water after a good rain. They are quick to clean off and have good weight so you can let them fly! Furthermore, they bounce well, which is perfect for my dog that likes to catch them on a bounce. The ball is a strong rubber, so should not be easy to chew up. I've used these for years, and the only time I've had to replace them is when one gets lost in the hay field. I highly suggest these as replacements for the common tennis balls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 19, 2025
M
Verified Purchase
maxine
Los Angeles, US
★★★★★ 4
Heavy duty.
Size: Medium (2.5"), Style: Fetch Pack 2
My dog was not interested, but it’s a good product
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Reviewed in the United States on April 11, 2026
M
Verified Purchase
M Denise
Phoenix, US
★★★★★ 5
Treats and plenty of ball throwing with these doggie toy
Size: Medium (2.5"), Style: Fetch Pack 1
I have actually purchased these twice already. I love the one that glows in the dark but it still got lost in my yard lol. My dog is a big breed half pitt/Labrador so she did chew through one of them already. I play ball with her every single day but I DO have to take them away from her because she will destroy them. They are great to add in treats as well, that was one of the my favorite things about them as well. They do last just if you have an over zealous chewer do not let them keep them for long periods of time. They are a good value for the price. Buy them your dog will love it!
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Reviewed in the United States on August 2, 2025
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Verified Purchase
Who Let the Dogs Out
Massapequa, US
★★★★★ 5
My Female GSD loves
Size: Medium (2.5"), Style: Fetch Pack 1, Size: Medium (2.5"), Style: Fetch Pack 1
Shasta is my smallest. Six in December (2025) along with her brother. She’s 100 lbs and outside, completely ball driven see last picture. Don’t let the size (2.5”) of these Chuck-It balls deter you. If your larger Breed dog has any orthopedic issues, has already torn their ACL etc, one has arthritis but wants to play. This size is perfect! Shazzy was born with several ortho issues. I don’t throw balls distance but right to her. This size and lighter weight assure even when Shazzy is spazzy w excitement, she’ll catch the ball mid air. The green balls are softer, and glow in the dark. In summer we can play well past dusk and I can see them! Her personality shows in the pictures. Playing ball is part of her. These balls are just perfect for her situation. Somehow they disappear, she loves making baskets, puts them in my tractor bucket, or my gardening bucket..then get put in burn pile, trash etc. I keep replacing them because she’d look day and night if we actually ran out!! 🙏✝️👍🏼👍🏼
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Reviewed in the United States on September 3, 2025
T
Verified Purchase
theslossmoss
Alexandria, US
★★★★★ 5
SHORT-game Ball Launcher … love it!
Yes, this is a smaller ball launcher … It is for her SHORT Game! Love it AND the squeaky baseball that came with it is A-HIT!! Our black golden doodle, Josie, carried that around for hours … batting it around, jumping on it, resting with it right-next-to-her. For your pup’s LONG game, purchase the longer launcher. GAME-on!
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Reviewed in the United States on May 23, 2026

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