Product details

SPECS

Sound

- Subwoofer 8 inches
- Tweeter 2.36 inches

Speaker Power

- 120W

Frequency Range

- 50Hz-20KHz, - 10dB

Signalto-Noise Ratio

- ≥67dB

FEATURES

- AUX & USB Reader & TF Card

- Wireless Mic*2

- Music Instruments Input *2

- EQ Sound Model

- Knobs for adjustment

- Headphone Monitor

- TWS Connection

- Recording, Display, Live, etc.

DIMENSIONS & BATTERY

Length*Width*Height

- 25.0cm*30.3cm*46.3cm

Item Weight

- 13.8KG

Battery Capacity
- 10.8V / 7650mAh

PRODUCT DESCRIPTION

Concert-Quality Sound, Anytime, Anywhere

Unleash 180W of raw audio power with the K21 SE. Four precision tweeters slice through the air with razor-sharp highs, while a dedicated woofer pounds out deep, chest-rattling bass. Two passive radiators supercharge the low frequencies, delivering an immersive, 360° soundscape that fills any space—from intimate backyard gigs to bustling outdoor festivals.

Plug & Play, No Matter the Setup

This speaker is your one-stop audio hub:

  • Wireless Freedom: Stream via Bluetooth 5.0 with zero lag
  • Versatile Inputs: Play from USB drives, TF cards, or AUX cables
  • Live Performance Ready: Connect two wired microphones and two instruments simultaneously

Whether you’re a solo artist, a band, or a DJ, K21 SE adapts to your gear, eliminating the need for complex audio setups.

Tailor Your Sound, Your Way

Take control with intuitive sound adjustment knobs. Fine-tune bass, treble, and midrange frequencies, tweak microphone volume, and even add reverb effects. From warm jazz tones to booming EDM drops, customize every nuance until your audio matches your vision—perfect for musicians, presenters, and audiophiles who demand precision.

Unleash Your Inner Performer

With two true diversity wireless microphones in the box, say goodbye to dropouts and interference. These mics lock onto signals with military-grade stability, delivering crystal-clear vocals with minimal noise and distortion. Ideal for karaoke marathons, live concerts, or public speaking events—your voice takes center stage, every single time.

Included in the Box

  • Speaker

  • User Manual

  • cable

    OTG, USB Cable, etc.

  • Wireless Mic*2

  • Remote Control

FAQs

Please read our FAQs page to find out more.

How long will shipping take?

We ship from multiple locations around the world. For customers in the U.S., delivery usually takes 3–7 business days. For Europe and other regions, it typically takes 2–5 business days.

Does the speaker come with a warranty?

Yes, we offer a 12-month warranty on all products. If there’s any issue, our support team is here to help.

Can I pair two speakers for stereo sound?

Absolutely! Many of our models support True Wireless Stereo (TWS), allowing you to pair two units for a powerful 360° stereo experience.

Can I cancel or change my order after placing it?

We begin processing your order shortly after it’s placed to ensure quick delivery. If you need to cancel or make changes, please contact us at support@w-kingaudio.com or via live chat within 24 hours. Once your order has been shipped, it cannot be modified or intercepted. We’ll do our best to assist you if the order hasn’t yet been fulfilled.

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