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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GTDaudio 4x800 Channels UHF Diversity Wireless Cordless Microphone System

Product ID: 92847119

Details

Brand
GTDaudio
Color
Black Silver
Compatible Devices
Headphone
Connectivity Technology
Wireless
Connector Type
XLR
Included Components
4 Handheld

📡450ft extended UHF range

📶800 selectable frequencies per channel

🔄Automatic frequency scanning & sync

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Description

🎤 Own the stage with wireless freedom and crystal-clear sound!

PRO GRADE AUDIO CLARITY - Tone Lock squelch circuit eliminates noise, delivering crystal-clear sound every time.
PLUG PLAY FREQUENCY SYNC - Automatic transmitter and receiver setup means you’re stage-ready in seconds.
TRUE DIVERSITY RELIABILITY - Experience dropout-free performances with advanced dual-antenna diversity technology.
VERSATILE WIRELESS FREEDOM - Up to 450 feet of UHF range ensures flawless mobility for DJs, speakers, and performers.
SEAMLESS MULTI CHANNEL MASTERY - Operate up to 20 sets simultaneously with 4x800 frequency options for zero interference.

The GTDaudio G-787 is a professional 4-channel UHF wireless microphone system featuring 800 selectable frequencies per channel, true diversity operation for enhanced signal reliability, and automatic frequency scanning for interference-free performance. With a robust 450-foot range and quick transmitter-receiver synchronization, it’s designed for seamless use in churches, karaoke, DJ events, and more.

Specifications

ASIN	B07KRMX7VH
Antenna Location	Church, Karaoke, DJ Party
Audible Noise	120 db
Audio Sensitivity	85 db
Best Sellers Rank	#15,264 in Musical Instruments ( See Top 100 in Musical Instruments ) #197 in Handheld Wireless Microphones & Systems
Brand	GTDaudio
Built-In Media	4 Handheld Microphones, Receiver
Color	Black, Silver
Compatible Devices	Headphone
Connectivity Technology	Wireless
Connector Type	XLR
Customer Reviews	4.4 4.4 out of 5 stars (490)
Enclosure Material	Metal
Frequency Response	590 MHz
Hardware Platform	Karaoke Machine
Item Dimensions	17 x 7 x 2 inches
Item Highlight	Ideal for Church, Karaoke, Dj Party, Range 450ft (4 Handheld Mics)
Manufacturer	GTD Audio Inc
Mfr Part Number	G 787
Microphone Form Factor	Handheld
Model Name	G-787H
Model Number	G 787
Number of Channels	4
Number of Items	4
Polar Pattern	Omnidirectional
Power Source	Battery Powered
Signal-to-Noise Ratio	120 db
Special Feature	True diversity operation, Automatic frequency scanning, Automatic transmitter setup, Adjustable channels, Tone Lock squelch circuit
UPC	854318007356
Unit Count	1 Count

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B/.1173

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered 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 Panama.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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