Tech & Electronics >>
HKM-540755 Bluetooth Sound Card Mixer with Microphone Effects and USB Compatibility
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
Every product we offer includes a 180-day purchase protection plan at no additional cost. This coverage extends beyond a standard warranty, reflecting our confidence in product quality and our ongoing commitment to your satisfaction.
The protection plan is designed to provide practical help in real-world situations. Whether you encounter a manufacturing issue, a performance problem, or an unexpected accident, our team is ready to assist with clear, fair solutions.
What Is Covered
Manufacturing Defects
We replace items with material or workmanship flaws at no charge.
Performance Failures
Free repair or replacement if the product fails under normal use.
Accidental Damage
One-time courtesy replacement at a reduced price.
Zero Hidden Fees
All shipping costs for replacements and returns are covered.
How to File a Claim
How This Differs from the Warranty
The 180-day purchase protection includes accidental damage and performance failures that are typically not covered by a standard warranty. It provides an additional layer of support during the first six months after purchase, giving you greater confidence and peace of mind.
We want you to be completely satisfied with your purchase. If for any reason you are not fully happy, you may return your item within 30 days of delivery for a full refund. No lengthy forms, no unnecessary questions.
Our return policy is built on a simple principle: if the product is not right for you, we will make it right. We understand that online shopping involves trust, and we work hard to earn that trust with every order.
Return Eligibility
30-Day Window
Request a return within 30 days of delivery.
Original Condition
Unworn or unused, with tags and original packaging.
Proof of Purchase
A receipt or order number is required.
Fast Refund
Refund processed within 10 business days.
How to Start a Return
Returns & Exchanges Overview
Damages & Exchanges
Please inspect your order as soon as it arrives. If the item is defective, damaged, or incorrect, contact us immediately so we can evaluate the issue and make it right. For exchanges, the fastest option is to return the original item and place a new order for the replacement.
We believe in the quality of our products, and we want you to share that confidence. Every product is backed by a 24-month warranty covering all structural and functional components, including zippers, buckles, straps, and fabric integrity.
The warranty is designed to be simple and accessible. You only need your proof of purchase to begin a claim, and our team will assess the issue promptly. If a manufacturing issue arises, we will make it right.
What the Warranty Covers
Comprehensive Coverage
Every part warranted for two full years.
Free Repair or Replacement
Whichever is faster, at no cost to you.
Quick Turnaround
Claims assessed within 1 business day.
Transferable
Warranty follows the product, not the owner.
How to File a Warranty Claim
Every order ships free—no minimums, no hidden fees. We currently deliver across the United States and are actively working to expand to more countries. We partner with reliable U.S. courier services to ensure your order arrives safely and on time.
Our delivery process is designed for transparency. From the moment you place your order to the moment it reaches your door, you receive clear updates at every stage. We carefully inspect each product before dispatch, and we provide tracking information as soon as your order ships.
Our U.S. Shipping Partners
USPS
Official national carrier with nationwide coverage.
UPS
Fast and reliable ground and express shipping.
FedEx
Express delivery with real-time tracking.
DHL eCommerce
Efficient parcel delivery for e-commerce shipments.
Delivery Process
Delivery Time Summary
Cancellations & Taxes
You may cancel your order at any time before it ships. All product prices include applicable taxes, and there are no additional VAT or customs fees for orders delivered within the United States.
Whether you have a question, need help with an order, or just want some advice, our support team is available around the clock. We don't just respond to messages—we work with you to find real solutions that fit your needs.
Our support specialists are trained to handle a wide range of requests, from product recommendations to technical troubleshooting. No matter the question, you can expect a professional and friendly response.
How We Can Help
Product Guidance
Our experts help you choose the right product.
Order Assistance
Modify orders, track shipments, or speed up delivery.
Warranty & Returns
Start claims or returns quickly and easily.
Technical Troubleshooting
Step-by-step solutions for product issues.
Contact Information
24/7 Phone
+1 (209) 280-3200
support@hekomart.com
Address
3401 Dale Rd, Modesto, CA 95356
Support Hours
Available 24 hours a day, 7 days a week