How can the two microphones be used at the same time?

as another reviewer has mentioned, each microphone has to be set up on a different channel (see the instructions). Basically plug the receiver into the amp or mixer channel you wish to use then set the first microphone to a channel ( see instructions) the last microphone is then set to a different channel and linked the same way. Now you're set! Be aware that they will not have individually controlled volume since they'll be sharing the same amp/mixer input. IF you want individual volume control, you'll need to plug each receiver to a different amp/mixer channel! The mics are really good and a single channel should work fine! I hope this helps!

Can I buy extra receiver only

Yes. https://www.amazon.com/dp/B0B9SMYS4J

I feel that there is delay when i connect this device to an amazon echo speaker. should i change the speaker?

I have the same problem with delay - need answer soon !!

Does it support laptops? Or a bar speaker?

This should be fine, as the machine has three output modes, RCA 3.5mm and 6.35mm, and you can choose different connection modes according to your device

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UHF Wireless Microphone with 1/4'' Plug Rechargeable Receiver, 160 Feet, Professional Metal Dual Handheld Cordless Dynamic Mic System for Karaoke, Wedding, Singing, DJ, Party, Speech, Church

Product ID: 125540069

Details

Brand
Bietrun
Color
Battery Red
Compatible Devices
Amplifier
Connectivity Technology
UHF
Connector Type
3.5 mm Jack mm
Included Components
Microphone

🎤15 UHF adjustable channels

📡160ft wireless range

🔋4hr rechargeable receiver

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€ 96.95

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Sold byAmazon PortugalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎤 Own the spotlight with wireless power and pro precision!

SEAMLESS PLUG PLAY SETUP - Instantly connect to any mic-input device—no complicated pairing, just pure performance.
UNMATCHED WIRELESS FREEDOM - Roam up to 160 feet with crystal-clear, zero-delay audio—perfect for commanding any stage or event.
PRO GRADE DURABILITY DESIGN - Sleek alloy metal casing offers lightweight strength and wear resistance for long-lasting professional use.
VERSATILE MULTI CHANNEL OPERATION - Choose from 15 UHF channels with anti-jamming tech to ensure interference-free sound, even with multiple mics.
REAL TIME POWER SIGNAL MONITORING - Stay in control with on-screen battery and signal strength indicators—never get caught off guard.

The Bietrun UHF Wireless Microphone system delivers professional-grade sound with a 160-foot wireless range, 15 adjustable UHF channels, and a rechargeable receiver offering 4 hours of continuous use. Its durable alloy metal build and real-time battery/signal display make it ideal for karaoke, weddings, DJ sets, speeches, and more—ensuring flawless, interference-free audio every time.

Specifications

ASIN	B07PHN72X9
Antenna Location	Karaoke, Singing
Audio Sensitivity	130 Decibels
Best Sellers Rank	#1,447 in Musical Instruments ( See Top 100 in Musical Instruments ) #39 in Handheld Wireless Microphones & Systems
Brand	Bietrun
Built-In Media	Microphone, Receiver
Color	Battery Red and Grey
Compatible Devices	Amplifier, Audio Interface, Audio Mixer, Karaoke Machine, Speaker
Connectivity Technology	UHF
Connector Type	3.5 mm Jack, 6.35 mm Jack
Customer Reviews	4.4 4.4 out of 5 stars (8,352)
Enclosure Material	Metal
Hardware Platform	Karaoke Machine, Speaker with 1/4'' input
Item Dimensions	9.65 x 2.01 x 2.01 inches
Item Weight	270 Grams
Manufacturer	Bietrun
Mfr Part Number	SY-WXM-2
Microphone Form Factor	Professional Moving-Coil Unidirectional microphone core
Model Name	WXM02
Model Number	WXM02
Number of Batteries	1 Lithium Polymer batteries required.
Number of Channels	15
Polar Pattern	Unidirectional
Power Source	Battery Powered
Signal-to-Noise Ratio	120 dB
Special Feature	Battery Indicator Light, Rechargeable Receiver, Volume Control
Unit Count	1.0 Count
Warranty Description	1-year warraty

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