SKU: 55538402598

Wireless Microphone G-MARK GLC640 Professional 4 Channels Karaoke Mic Adjustable Frequency For Home Party Speaker Show Stage

Sale price$98.99 Regular price$109.99
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

Wireless Microphone G-MARK GLC640 Professional 4 Channels Karaoke Mic Adjustable Frequency For Home Party Speaker Show StageFrequency Adjustable: 4 Channels UHF wireless microphone system with selectable frequency 500 580MHz. Employs PLL frequency synthesized technology to provide hassle free sound transmission, minimum dropouts, and maximum feedback rejection. Smooth and quick synchronization. 4 Channels system: 4 microphones can be used at the same time. The fixed frequency of the wireless microphone set is designed to be 500 580MHz. The signal is stable and suitable for

Frequency Adjustable: 4 Channels UHF wireless microphone system with selectable frequency 500-580MHz. Employs PLL frequency synthesized technology to provide hassle-free sound transmission, minimum dropouts, and maximum feedback rejection. Smooth and quick synchronization. 

4 Channels system: 4 microphones can be used at the same time. The fixed frequency of the wireless microphone set is designed to be 500-580MHz. The signal is stable and suitable for on-site karaoke, meetings, family entertainment, teaching, stage performance and weddings. Long range reliable performance up to 130 feet, within the view range of open space.

Anti interference function: the karaoke microphone has an automatic scanning function, which is automatically connected when the phone is turned on, plug and play. Improve noise immunity and reduce interference between channels.

G-MARK Proprietary Capsule: The dynamic microphone's capsule of each microphone wireless is developed and manufactured by G-MARK and is printed with the G-MARK logo. The high-quality core effectively limits feedback and interference, picks up sound smoothly and transmits it with ease. Provides clear, powerful, best true sound.

Devoted Service:Genuine G-MARK Professional Microphone comes with 12-month manufacturer assurance and supportive customer service. Welcome to come to us for troubleshooting or replacement of discontinuous/defective parts.

Professional service: G-MARK products have a 12 month manufacturer's warranty and supportive customer service. Come here to troubleshoot or replace discontinuous/defective parts

Product Features
Carrier frequency band:UHF
Audio sampling mode: 48KHz
Frequency range: 50Hz-18KHz
Receive auto scan
Theoretica transmission distance in open environment: 50meters
Handheld Microphone Specifications
Microphone type:Dynamic
Pickup:cardioid
Frequency Range:500-580MHz
RF bandwidth:60MHz
Transmit power:10mW
Frequency response:50Hz-18KHz
Dynamic Range:96dB
Harmonic radiation:<-50dBc
Distortion::<0.1%
Power supply:Two AA batteries

Package List:
1*Receiver
4* Wireless Microphone
4* Microphone protection ring
1*Power Cable
1* 6.35mm Cable
1*manual

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: 55538402598

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4.8 ★★★★★
Based on 23 reviews
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M
Verified Purchase
Meremebjo
Louisville, US
★★★★★ 5
the perfect outdoor solution & very well priced
Color: Lake Blue
This is a beautiful & sturdy umbrella. i had owned a Pier I multi tiered umbrella ($198) and it looked great when I first brought it home, but after one summer, it had faded, the wood swelled to the point where I couldn't get it out of the stand & when the skeleton arm broke, it could NOT be repaired & I paid more than a few carpenters to try. THIS umbrella is a completely different experience from start to finish: well made, lightweight fabric, easy to unpack & popped right into the stand without tiresome effort: no ladders required. It does exactly what it’s supposed to: protects from hot sun & rain, tilts accordingly & I LOVE the deep teal blue that is very soothing in all weather conditions. The price is affordable and I hope it lasts for years. I’m a VERY happy customer!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 15, 2025
J
Verified Purchase
Jeffrey stone
Alexandria, US
★★★★★ 5
Very good umbrella
Color: Forest Green
Very large but lightweight and easy to handle. Good looking umbrella both fully open and closed. Does an excellent job of blocking the sun.
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Reviewed in the United States on May 21, 2026
H
Verified Purchase
Harold C.
Natrona Heights, US
★★★★★ 5
Easy to use and seems sturdy
Color: Aqua Blue
It’s perfect! Larger than or last one. Easy to set up. Fits in a standard table hole and base. The color is just what the dogs wanted! Everything is always so grey and dull! The turquoise really pops
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
M
Verified Purchase
Mike W
Charlottesville, US
★★★★★ 4
Three tiered design makes it a winner
Color: Beige
This umbrella is extremely easy to setup. It is lightweight and because of the three tier design it adds beautiful features to your back yard.
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Reviewed in the United States on May 14, 2026
L
Verified Purchase
Lynn
Battle Creek, US
★★★★★ 1
No customer service for product under warranty
Color: Beige
loved this umbrella for the 4 months we used it. did a lot of research to find an umbrella that would stand up to New England "breezes" -- this one was advertised as wind resistant; bought in June 2025, seemed very sturdy, really nice-looking, used on our patio (installed in the base the recommended base) through the summer; stored indoors for the winter; brought back onto patio a couple weeks ago. On a day with average wind a couple weeks ago, the tilt mechanism broke. Umbrella did not fall over, a gust of wind just forced the tilt mechanism to snap. Spent a lot of time trying to fix it, but it's permanently broken. It's less than a year old so still under warranty, as stated in the materials they sent with the umbrella. Same materials list the email to contact if there are any problems with the product. Have emailed the company, twice now, asking for a refund or replacement. Radio silence. Don't buy this unless you're ok with throwing it away after four or five months of use and being ignored by customer service.
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Reviewed in the United States on May 29, 2026

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