SKU: 81430332756

HKM-524435 Dual-Channel Wireless Microphone Kit with Active Noise Cancellation and Portable Charging Case

Sale price$83.69 Regular price$92.99
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

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Description

HKM-524435 Dual-Channel Wireless Microphone Kit with Active Noise Cancellation and Portable Charging CaseIntroducing the HKM 524435 Dual Channel Wireless Microphone Kit, the ultimate solution for live streaming, vlogging, interviews, and mobile journalism. Designed for professionals who prioritize sound quality and convenience, this kit features two clip on transmitters that allow you to record two speakers simultaneously, making it ideal for discussions and collaborations. With its advanced 2. 4 GHz digital link, you can rely on stable, low latency

Introducing the HKM-524435 Dual-Channel Wireless Microphone Kit, the ultimate solution for live streaming, vlogging, interviews, and mobile journalism. Designed for professionals who prioritize sound quality and convenience, this kit features two clip-on transmitters that allow you to record two speakers simultaneously, making it ideal for discussions and collaborations.

With its advanced 2.4 GHz digital link, you can rely on stable, low-latency transmission up to 50 meters line-of-sight, ensuring your audio maintains its clarity no matter the distance. One of the standout features of the HKM-524435 is its built-in active noise cancellation, which effectively filters ambient noise, delivering crystal-clear vocals even in challenging environments.

The included portable charging case adds an extra layer of practicality, featuring magnetic docks that recharge all units while displaying LED indicators for power and pairing status. This kit is universally compatible and supports plug-and-play functionality with interchangeable Lightning and USB-C adapters, so it can easily connect to your device, whether it's a smartphone, DSLR, mirrorless camera, or PC.

With an impressive battery life of up to 6 hours per unit, and a total of 24 hours available with the case's reserve power, you can confidently record longer sessions without interruption. Plus, the auto-pair on power-up feature allows for instant connections, eliminating the hassle of manual syncing.

Real-time monitoring is facilitated through a pass-through headphone output on the receiver, enabling live audio checks to ensure your recordings are flawless. Constructed from durable ABS material, the HKM-524435 is both rugged and compact, fitting easily into your pocket for on-the-go convenience.

Elevate your recording experience with the HKM-524435 Dual-Channel Wireless Microphone Kit, where quality meets portability.

OVERVIEW
The SX21 is a professional‑grade dual‑channel wireless mic kit designed for live streaming, vlogging, interviews, and mobile journalism. It includes two clip‑on transmitters and a compact receiver that plugs directly into your device—whether iPhone (Lightning) or Android (USB‑C). All three units dock in a portable charging case with auto‑pairing and LED indicators, giving you clear, noise‑reduced audio on the go without bulky cables or mixers.

FEATURES

  • Dual Transmitters: record two speakers simultaneously with separate clip‑on mics

  • 2.4 GHz Digital Link: stable, low‑latency transmission up to 50 m line‑of‑sight

  • Active Noise Cancellation: built‑in ANC filters ambient noise for crystal‑clear vocals

  • Portable Charging Case: magnetic docks recharge all units; LED status for power and pairing

  • Universal Receiver: plug‑and‑play with interchangeable Lightning and USB‑C adapters

  • Long Battery Life: up to 6 hrs per unit; total of 24 hrs with the case’s reserve power

  • Auto‑Pair on Power‑Up: instant connection—no manual syncing required

  • Real‑Time Monitoring: pass‑through headphone output on receiver for live audio checks

  • Broad Compatibility: works seamlessly with smartphones, DSLRs, mirrorless cameras, and PCs

  • Durable & Compact: rugged ABS construction in a pocket‑friendly form facto

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 81430332756

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4.7 ★★★★★
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Emma Shirley
Whiting, US
★★★★★ 5
Easy to use high quality
Color: White
Quick and easy to replace
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
R
Verified Purchase
road soda
Port Orchard, US
★★★★★ 5
The best electric toothbrush ever
Color: Rose Gold
Dentists on the tube agree, this is the best clean you can get and at such a low price compared to the others. These heads are durable, they last me like 4 months each, maybe more. Functions great with the vibration levels of the burst and unbeatable battery life.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 27, 2025
L
Verified Purchase
lynn
Louisville, US
★★★★★ 5
Replacement
Color: Black
Great product!
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Reviewed in the United States on May 17, 2026
W
Verified Purchase
Wendy K
Bozeman, US
★★★★★ 5
A Little Color Chaos, but My Teeth Don’t Mind
Color: Lavender
I grabbed these BURST replacement heads thinking they’d match my toothbrush perfectly — turns out, I’ve created a stylish little mix-and-match masterpiece. My brush now looks like it’s dressed for a rave, but honestly, I kind of love it. Despite the color confusion, these heads work great. They snap on easily, feel sturdy, and leave my teeth feeling squeaky clean like I just left the dentist (minus the awkward small talk). they may not match, but they definitely make my smile shine.
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Reviewed in the United States on March 23, 2026
S
Verified Purchase
S. A.
Phoenix, US
★★★★★ 4
UPDATE:Replacement brush DOES NOT FIT well! Customer service difficulties.
Color: Rose Gold
I bought a burst toothbrush about seven month ago from Amazon for $99. (Now they are about $70). I subscribed to the burst website so I could have my toothbrush unit under warranty. I’ve been receiving replacement heads from them directly which is slow and spotty. But they did arrive (I replace the heads every two to three months). This week I received my brush head and it did NOT fit the unit. I emailed the company directly and still have not heard what they are going to do. In the meantime I ordered the three pack replacement heads from Amazon since they are quick and reliable on prompt delivery. So again- opened it up and it BARELY FIT. I had to jamb the head onto the unit. I’m honestly not sure if it will come off again. I guess I’ll figure that out in three more months 🤨. The Burst seems like a decent toothbrush- although my hygenist wasn’t sure it’s as good as oralB or sonicare. I frankly got tired of sonicare breaking very quickly and the last one was $200! That’s why I switched. I hope they will resolve this manufacturing problem. I like the unit, it’s gentle on my sensitive gums and it holds a charge a really long time. And to be clear I ordered the BURST heads, not the knockoffs from China. I hope I can continue to be a customer. The prior replacement heads have always worked and went on easily. UPDATE: customer service reached out to me - which I truly appreciate!! After using the head for a few weeks it loosened up (in a good way). Not sure why it was too tight initially- but it’s all good now. I will continue to support Burst 💥 oral care. I added a star ⭐️ to my prior review to reflect the good customer service. They also replaced my first defective head that got me started on this “rant”.
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Reviewed in the United States on April 12, 2023

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