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SK821BT wireless speaker 4500mAh 360° passive radiator front view | HAVIT
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SK821BT wireless speaker 4500mAh 360° passive radiator front view | HAVIT
SK821BT wireless speaker strong bass & clear vocals IPX waterproof rating detail | HAVIT
SK821BT wireless speaker side profile passive radiator and strap | HAVIT
SK821BT wireless speaker 15W USB-C charging and AUX input | HAVIT
SK821BT wireless speaker RGB light ring mode display | HAVIT
SK821BT wireless speaker outdoor lifestyle waterproof in-use | HAVIT
SK821BT wireless speaker carry strap and carabiner clip | HAVIT
SK821BT wireless speaker microphone grille close-up | HAVIT
SK821BT wireless speaker ipx5 waterproof button controls top view | HAVIT
SK821BT wireless speaker retail packaging and accessories | HAVIT
SK821BT wireless speaker 4500mAh 360° passive radiator front view — rear angle | HAVIT

HAVIT Wireless Speaker SK821BT Bass

Product Highlights
  • STRONG BASS & CLEAR VOCALS: Dual 66mm dynamic drivers deliver powerful bass while maintaining clear vocal reproduction.
  • IPX5 WATERPROOF: Protected against water jets, making it ideal for pool parties, beach outings, or use in the rain.
  • DYNAMIC LIGHT SHOW: Features multi-color gradient ring lights with cool strobe effects that sync to your music's beat.
  • LONG BATTERY LIFE: Built-in 4500mAh battery provides up to 12 hours of continuous music playback on a single charge.
  • TWS INTERCONNECTION: Connect two speakers wirelessly for true wireless stereo and 360° surround sound.
  • PORTABLE & VERSATILE: Compact design with both a strap and handheld option for easy transport anywhere.
  • MULTIPLE CONNECTION OPTIONS: Supports Bluetooth, TF card, AUX input, USB playback, TWS, and hands-free calls.
Global Distributors Wanted
Competitive Pricing
Competitive Pricing
Tailored Customization
Tailored Customization
International Certifications
International Certifications
Marketing Support
Marketing Support
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Category Specification
Bluetooth versionV5.0
Rated power8W*2
Peak power15W*2
Battery3.7V/4500mAh
Play time12H
Charging time4H
Speaker size66MM*2
SupportBT, TF, AUX, USB, TWS, hands-free calls
Wireless working range10M(without obstacles)
Input5V=1A
Charging methodType-C
Product size250*143.5*114mm
Q
Is the SK821BT speaker compatible with my iPhone 15 and Samsung Galaxy phone?
A
Yes—this HAVIT model features Bluetooth V5.0 technology that pairs instantly with virtually any smartphone or tablet you own. Whether you're team Apple or Android, just turn on Bluetooth scanning on your device and select the speaker from the list—it takes seconds.
Q
Can I take this speaker to the pool or beach without worrying about water damage?
A
Absolutely—the IPX5 waterproof rating means it's built to withstand water jets from any direction. Splashes at the pool party? Sand at the beach? Light rain at an outdoor gathering? You're completely covered here.
Q
How long will it actually play music before needing a recharge?
A
The built-in 4500mAh battery delivers up to 12 hours of continuous music playback on a single charge—more than enough for a full day at the beach or a backyard BBQ that stretches into evening entertainment.
Q
What happens if I want bigger sound? Can I connect two of these together?
A
Yes—this speaker supports TWS interconnection so you can pair two units wirelessly for true stereo sound with left-right channel separation and expanded coverage—perfect for filling larger spaces or creating an immersive listening experience.
Q
Is this speaker sturdy enough for commercial use like in a retail store or restaurant?
A
With dual 66mm dynamic drivers rated at 8W continuous power (15W peak), this unit is built to deliver consistent bass-heavy performance day after day without degrading. The robust construction combined with multiple connection options makes it a reliable choice for hospitality venues or event rentals where durability directly impacts your bottom line.