How can i huy just the microphones?

You can buy them from GTD Audio. Go to gtdaudio.net and search for 787

What kind of rechargeable batteries can you use in this unit, they can be used because I try Duracell but they are a little fat and someone broke one.

** DO NOT DO NOT ** Use rechargeable batteries in microphones (or any device) that uses standard batteries!! Standard batteries are 1.5volts. Rechargeable are 1.2 volts. So if you microphone uses two batteries, it is working with 3 volts. However, if you are using rechargeable batteries, you are only giving it 2.4 volts which means it may have reduced range and cause other problems, as 2.4 volts is like weak regular batteries. When someone like Shure provides a rechargeable battery pack option, the pack is actually containing THREE batteries in the pack - even though it fits into a two battery compartment thereby providing 3.6 volts for a 3 volt device. Again... you will have many problems if you try to use rechargeable batteries in a device like this!!

Does this system have echo cancellation built in? (to avoid ringing / resonance)?

It does not and these mics are fairly susceptible to feedback, however you can usually eq the rings out just fine or use the gain control on the receiver to decrease the sensitivity.

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GTD Audio 4x800 Adjustable Channels UHF Diversity Wireless Cordless Handheld Microphone Mic System Ideal for Church, Karaoke, Dj Party, Range 450ft (4 Handheld Mics)

Product ID: 431463440

Details

Brand
GTD Audio
Connectivity technology
XLR
Connector type
XLR
Model name
G-787H
Recommended uses for product
Karaoke

📏450ft wireless range

📡True diversity for max range & reliability

📶800 selectable frequencies/channel

520498CFA

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Description

🎤 Own the stage wirelessly—crystal clear, drop-out free, and built for pros.

TRUE DIVERSITY TECH - Dual antenna system boosts signal stability and extends your wireless freedom up to 450 feet.
EFFORTLESS SYNC SETUP - Automatic transmitter and receiver pairing means you’re ready to perform in seconds—no tech headaches.
PRO GRADE SOUND CLARITY - 120dB signal-to-noise ratio and omnidirectional mics deliver pristine audio for every event, from church to DJ parties.
SMART AUTO FREQUENCY SCANNING - Automatically locks onto the clearest channel, eliminating dropouts and ensuring flawless performance.
SEAMLESS MULTI CHANNEL MASTERY - Operate up to 20 sets simultaneously without interference—own the room with crystal-clear sound.

The GTD Audio G-787H is a professional 4-channel UHF wireless microphone system featuring 800 selectable frequencies per channel, true diversity operation for enhanced range and reliability, and automatic frequency scanning for interference-free performance. With a wireless range up to 450 feet and effortless transmitter-receiver synchronization, it’s engineered for flawless sound at events like church services, karaoke nights, and DJ parties.

Specifications

ASIN	B07KRMX7VH
Antenna Location	Karaoke, Singing
Audible Noise	120 Decibels
Audio Sensitivity	85 Decibels
Brand	GTD Audio
Built-In Media	Microphone
Color	Black
Compatible Devices	Headphone
Connectivity Technology	XLR
Connector Type	XLR
Enclosure Material	Metal
Frequency Range	550MHz 590MHz
Frequency Response	590 MHz
Hardware Platform	Karaoke Machine
Impedance	600 Ohms
Item Dimensions	43.2 x 17.8 x 5.1 centimeters
Manufacturer	GTD Audio
Mfr Part Number	G 787
Microphone Form Factor	microphone system
Model Name	G-787H
Model Number	G 787
Number of Channels	4
Polar Pattern	Omnidirectional
Power Source	Battery Powered
Signal-to-Noise Ratio	120 dB
Special Feature	Wireless
UPC	854318007356
Unit Count	1 Count

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520498CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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