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Ships within 48 hours · Estimated delivery Jul 27 - Aug 1
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Description
Acefast K4 Go Wireless Portable SpeakerAcefast K4 Go Wireless Portable Speaker (model K4GO LS) is designed for portable wireless music in multiple settings, including home, hiking, camping, and office. With Bluetooth version v5. 4, it supports wireless connectivity and is built for outdoor use with an IPX7 waterproof rating. It also features a built in hanging strap to support convenient carrying during travel. For audio performance, the speaker includes a 1 full range speaker unit and 1
Acefast K4 Go Wireless Portable Speaker (model K4GO-LS) is designed for portable wireless music in multiple settings, including home, hiking, camping, and office. With Bluetooth version v5.4, it supports wireless connectivity and is built for outdoor use with an IPX7 waterproof rating. It also features a built-in hanging strap to support convenient carrying during travel. For audio performance, the speaker includes a 1 full-range speaker unit and 1 passive diaphragm, with a stated frequency response range of 60Hz-20000Hz. The unit supports TWS interconnection, enabling TWS pairing for immersive stereo sound. Battery specifications are listed as 900mAh / 3.7V, with a charging time of 1.5 hours and a working time of 8 hours in music mode.Key Features
• Supports TWS interconnection
• Built-in hanging strap for convenient outdoor travel
• IPX7 waterproof
• Home, hiking, camping, office use scenarios
• Supports TWS pairing for immersive stereo sound
• Portable strap
Specifications
• Product name: ACEFAST K4 Go portable wireless speaker
• BT version: v5.4
• Transmission distance: ≥10m
• Frequency response: 60Hz-20000Hz
• Charging time: 1.5 hours
• Working time: 8 hours (music mode)
• Note: All measures are made under 50% volume level
• Speaker unit: 1 speaker unit + 1 diaphragm
• Speaker unit details: 1 full-range speaker unit [45×45mm]
• Passive diaphragm: 1 passive diaphragm [35×60mm]
• Waterproof rating: IPX7
• Power: 5W power
• Speaker power: Rated power 1×4W
• Speaker power: Peak power 1×5W
• Battery capacity: 900mAh / 3.7V
• Input: DC 5V⎓0.86A (USB-C)
• Size: 100*40*78mm
• Weight: 200g
• Lightweight and portable; mini size weighing 200 grams
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
4.6 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 2
Expensive ball- stops working in a week
Came without any protection inside for batteries. Stopped working after a week. Expensive ball to break in a week
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Reviewed in the United States on December 7, 2025
★★★★★ 5
Great ball for dogs
Murphy’s favorite ball!!!
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Reviewed in the United States on February 18, 2026
★★★★★ 5
Great fun for our dogs!
Style: Original
My dogs can’t get enough of this very noisy ball. We have one outside and one in their playroom. It is very noisy. It is very hard. So, I’d say a room with fine furniture is not the place for it. Ours bang it around pretty good.
Our boxer did split one, biting it. But, she’s a serious chewer! Our other dog carries it around sometimes but hasn’t been able to damage it yet. So, I’d say for most chewers it’s going to last a long time.
It’s a great toy but in most households I’d say basement or outside. Again, it’s hard and did ding a few baseboards.
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Superb!
Style: Original
My dog absolutely loves this ball. It's too big for him to fit all the way in his mouth, so it's held up pretty well and still makes the sounds.
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Reviewed in the United States on May 31, 2026
★★★★★ 4
Fun, but buy a couple of them
Style: Original, Style: Original
She loves them. Great toy, but the product can’t hold up- purchased 4-11-2026
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Reviewed in the United States on April 15, 2026