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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30
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Description
HXSJ Air-S4 Bluetooth 5.1 True Wireless HiFi Stereo Earphones with Charging Case1. Bluetooth version: V5. 1+EDR 2. Bluetooth protocol: A2DP1. 3 HFP1. 6 HSP1. 2 3. Chipset: Bluetrum 5376 4. Shell material: ABS+PC 5. Charging time: 1 hour 6. Bluetooth distance: 10m 15m 7. Earphone battery capacity: 30mAh*2 8. Standby time: 240Hours 9. Play Calling Time: 2 2. 5 Hours 10. Charging box battery capacity: 200mAh 11. Speaker model: 13. Round horn 12. speaker size: 13mm 13. Impedance: 320 14. Rated power: 3mW 15. Maximum power: 5mW 16.
1. Bluetooth version: V5.1+EDR2. Bluetooth protocol: A2DP1.3/HFP1.6/HSP1.2
3. Chipset:Bluetrum 5376
4. Shell material: ABS+PC
5. Charging time: 1 hour
6. Bluetooth distance: 10m-15m
7. Earphone battery capacity: 30mAh*2
8. Standby time: 240Hours
9. Play/Calling Time: 2-2.5 Hours
10. Charging box battery capacity:200mAh
11. Speaker model: φ 13. Round horn
12. speaker size: φ 13mm
13. Impedance: 320 Ω
14. Rated power: 3mW
15. Maximum power: 5mW
16. Frequency response:20hz- 20Khz
17. Charging time of charging box:1.5-2 Hours
18. The mumber of times the charging box charges the headset: 3 times
19. The blue lights of main and auxiliary /TWS connection success indication: engines flash slowly at intervals
20. Single headphone weight：7g
21. Single headphone size：3.1*1.6*1.6cm
22. Charging box weight：19g
23. Charging box size: 4.4*4.3*2.1cm
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
4.3 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 4
Lightweight Balls
Color: A.Orange+Blue+Green
lightweight but solid. Unfortunately, I can't bring to dog park for my dog to play with as the larger dogs will destroy them. Not for dogs that chew through everything.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Fun ball
It doesn’t last a whole long time, but she loves it! It’s crazy and it drives her playfulness crazy!
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Reviewed in the United States on February 8, 2026
★★★★★ 2
No squeak balls
Color: A.Green+Orange
They don’t squeak. They bounce much either.
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Reviewed in the United States on March 25, 2026
★★★★★ 3
Too big for puppies
Color: A.Green+Orange
The balls were a bit too big for my 6 month chihuahuas:/ they are as big as a tennis ball so puppies didn’t like nor play with them
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Reviewed in the United States on April 26, 2026
★★★★★ 5
Frenchie approved
Color: A.Orange+Blue+Green
Frenchie approved
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Reviewed in the United States on May 6, 2026