SKU: 72449935164

HKM-540755 Bluetooth Sound Card Mixer with Microphone Effects and USB Compatibility

Sale price$114.29 Regular price$126.99
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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For Your Every Summer RSVP, with Code: SUMMER15

Description

HKM-540755 Bluetooth Sound Card Mixer with Microphone Effects and USB CompatibilityIntroducing the HKM 540755 Bluetooth Sound Card Mixer, designed to elevate your audio experience with versatile functions and high quality performance. This sleek black mixer combines a durable metal and ABS construction, ensuring longevity while delivering exceptional sound quality. The HKM 540755 features an impressive frequency response of 20Hz to 20kHz, along with a total harmonic distortion of just 0. 02%, making it perfect for both professional

Introducing the HKM-540755 Bluetooth Sound Card Mixer, designed to elevate your audio experience with versatile functions and high-quality performance. This sleek black mixer combines a durable metal and ABS construction, ensuring longevity while delivering exceptional sound quality.

The HKM-540755 features an impressive frequency response of 20Hz to 20kHz, along with a total harmonic distortion of just 0.02%, making it perfect for both professional and home use. Equipped with multiple input channels, including four microphone inputs, line inputs, PC, and USB options, it allows for seamless connectivity and versatility in your audio setup.

With true digital effect processing and independent volume adjustments, this mixer provides you with the tools needed to tailor your sound. The integrated phantom power supply makes it compatible with large diaphragm condenser microphones, enhancing its usability across various applications. Plus, the USB audio compatibility at 2IN/2OUT with a decoding rate of 48.1kHz and 24-bit bit depth guarantees crisp audio transmission.

Keep your levels in check with the clear LED indicators for the MAIN STEREO LEVEL, ensuring you never miss a beat while monitoring your audio. Whether you're mixing live performances, recording podcasts, or live-streaming, the HKM-540755 boasts the functionality and reliability to meet your needs.

Unleash your creativity and take control of your sound with the HKM-540755 Bluetooth Sound Card Mixer, an essential addition to any audiophile's toolkit.

Product information:

Colour: Black
Material: Metal + ABS

Frequency response: 0.05%dB/-2.0dB (20Hz to 20kHz), refer to rated output power @1kHz, GAIN knob: medium
Total harmonic distortion (THD+N): 0.02%@+10dBu (20Hz to 20kHz), GAIN knob: medium
Noise (20Hz to 20kHz): Residual output noise, -85dBu (STEREO OUT, STEREO LEVE), GAIN knob: small
Crosstalk (1kHz)*2: -83dB
Input/output impedance:
Microphone input: 3kΩ, line input: 10kΩ
Output: 150Ω (balanced) 75Ω (unbalanced)
AES digital signal input and output: 110Ω
Input channels: MIC*4, 2REC, PC, 2LINE, USB, BT, 3.5MINI
Output channel: STEREO OUT: 2, PHONES:1, 3.5MINI MAIN PH OUT:1, 2.GROUP PH:1.3.5MINI LOOP BACK output: 2.REC
Bus: Stereo: 1, GROUP:1.
Input channel function:
HPF(Mono)80Hz,12dB/octave (CH3,4) EQ HIGH
Gain: +15dB/-15dB frequency: 10kHz ramp frequency: EQ LOW
Gain: +15dB/-15dB Frequency: 100kHz Ramp frequency: PEAK LED When the signal after EQ reaches 3dB below the distortion, the LED lights up
LED indication: MAIN STEREO LEVEL knob, the green light is on when the MAIN LEVEL signal reaches -10dB, and the red light is on when it reaches 3dB below the distortion
Input and output level: MIC (-60dB) LINE OUTPUT (-40dB) MAX OUT (+12dB)
USB audio: 2IN/2OUT USB audio 2.0 compatible, decoding rate: 48.1kHz, Bit depth: 24-bit
Effect category: independent volume adjustment effect: true digital effect processing
Phantom power supply voltage: support large diaphragm condenser microphone
Voltage adapter: DC 5V/2.0A standard


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: 72449935164

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Caitlyn
Lowell, US
★★★★★ 5
Cute beach outfit
Size: Medium, Color: Purple, Size: Medium, Color: Purple
Cute summer lounge outfit. Material is similar to a T-shirt so it's breathable. The shape wear is built in and sturdy and unnoticeable under the dress part. I love the pockets, they easily fit your phone and other items. It's a perfect beach outfit, honestly, and super cute with sandals. I'm 5'7" 168lbs and wearing a size Medium. Not necessarily a con, but something to note: if you're a thick thigh girlie like me, the legs of the shape wear do ride up if you're walking around a lot, so wouldn't recommend if that's something that bothers you.
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Reviewed in the United States on April 19, 2026
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Nicole Verdesi
Natrona Heights, US
★★★★★ 5
I LOVE this dress.
Size: Small, Color: Blue
I’m disappointed I cannot wear this every day this summer. Seriously considering buying another in a different color. So comfy. Perfect summer outfit, and so versatile. Great for playground, yard work, pool coverup, etc. I’m 5’4” 130 lbs. Fits true to size and so flattering! Was worried about it being too short, and I can see that being the case for taller ladies, but it’s the perfect length for me!
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Reviewed in the United States on June 4, 2026
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Verified Purchase
Jason K.
Massapequa, US
★★★★★ 5
Very Straightforward and Easy to Use
Reload type: One Time Reload
I have used this several times, and it has always been a smooth and convenient experience. The biggest advantage is how intuitive the process is. Reloading the balance is simple, quick, and easy to understand without unnecessary steps or confusion. It is especially useful for managing spending, setting a shopping budget, or keeping funds ready for future purchases. Instead of entering payment details every time, having balance available makes checkout faster and more convenient. I also appreciate how quickly the funds are applied, allowing immediate use once the reload is completed. This is one of those simple Amazon features that works exactly the way it should. Overall, easy, efficient, and user-friendly. I have been very satisfied with it. Five stars.
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Reviewed in the United States on April 21, 2026
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Martini81
Lexington, US
★★★★★ 5
Easy and simple: Exact Step-by-Step Guide to Reloading Your Balance
Reload type: One Time Reload
I found reloading my Amazon gift card balance much easier than expected. The process was simple and took about 5 minutes at most. Here are the exact steps to do it: ​Login: In the Amazon app or on Amazon.com, log in to your account. ​ Menu: Tap the 3 lines on the bottom right corner of your screen (next to Rufus, Amazon's AI). ​ Find Category: In the section highlighted "Shop by category," tap on Gifting & Registry (3rd option down in that section) and a drop-down menu will appear. ​ Select Gift Cards: On the drop-down menu, tap Gift Cards (first option). ​ Choose Your Action: "The Gift Card Shop" will appear. There you will have three options: "Redeem a gift card," "View your balance," and "Reload." ​ Start Reload: To add funds, tap Reload. ​ Select Type: Scroll down to "Add funds directly to your Amazon Gift Card balance" and tap which reload type you want (one-time, low balance auto-reload, or scheduled auto-reload). ​ Enter Amount: Choose your reload amount. The default is $25, but you can type in your own amount as well (the minimum amount is $5.00). ​ Finish: Tap the orange "Buy Now" tab. ***I used the Amazon app using the u i OneUI version 8.0 these Amazon app on Android version 16 (Baklava) on a Samsung Galaxy S25 Ultra. Others may have a slight variation of the menu setup on the Amazon app.***
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Reviewed in the United States on April 22, 2026
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Kenneth Lucas
Port Orchard, US
★★★★★ 5
Easy way to add balance
Reload type: One Time Reload
Reloading my Amazon gift card balance has been easy and convenient. I like using it when I want to keep a little money set aside for Amazon orders or make checkout quicker without thinking about which card I want to use. The process is straightforward, the balance shows up fast, and it has been reliable every time I have used it. It is also helpful for budgeting because I can add a set amount and then use that balance for regular purchases. Nothing complicated about it, which is exactly why I like it.
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Reviewed in the United States on May 28, 2026

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