-BIETRUN-[THE WIRELESS MICROPHONE MANUFACTURER]

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-as of [18 JULY 2025]

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(pronounced “beet run”)

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-AMAZON LINK-

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-OFFICIAL LINK-

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*as of [28 APRIL 2025]* —>

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*as of [19 JUNE 2022]* –>

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*9 ITEMS* —>

-RECEIVER-

-TRANSMITTER-

-DIRECT MIC-

-HEADSET MIC-

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1

-RECEIVER-

-[6.5 MM] PHONE JACK-

-REQUIRES [CHARGING CABLE]-

-PLUG [USB-2 MICRO-B] JACK INTO [RECEIVER]-

-USE [[USB-A] JACK] OR [[USB-C] JACK] TO PLUG INTO [NEMA JACK] ADAPTER-

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2

-TRANSMITTER-

-[3.55 MM] PHONE PORT-
(TO PLUG IN A [MICROPHONE])

-[USB-2 MICRO-B] CHARGING PORT-

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3

-DIRECT MIC-

-[3.55 MM] PHONE JACK-

-WINDSCREEN-

-[10 CM]-

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4

-HEADSET MIC-

-1 METER-

-[3.55 MM] PHONE JACK-

-EARPIECE-

-MICROPHONE-

-WINDSCREEN-

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5

-LAVALIER MIC-

-MICROPHONE-

-WINDSCREEN-

-[3.55 MM] PHONE JACK-

-LAPEL CLIP-

-[92 CM]-

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6

-ADAPTER-
([6.35 MM] PHONE PORT)
([3.5 MM] PHONE JACK)

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-USER MANUAL-

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-[AFTER-SALES] CARD-

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UHF Wireless Lavalier Lapel Microphone System/Headset Mic/Stand Mic,

*165 FOOT RANGE*

(50.292 METERS)

Bietrun,

Rechargeable Transmitter Receiver,
(1/4″ Output)

for

iPhone,

Android,

PA Speaker,

DSLR Camera,

YouTube,

Recording

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*bietrun amazon profile page*

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*as of ’19 june 2022’* –>

*4 (OF 5) STARS*

*1596 RATINGS*

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$42.99

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*6.35MM JACKS* —>

*1 JACK* —>

-RECEIVER-

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*3.5MM JACKS* –>

*3 JACKS* —>

*RECEIVER*

*DIRECT MIC*

*LAVALIER MIC*

*HEADSET MIC*

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(where are the ‘6.35 MM jacks’?)

(i have plenty of ‘3.5mm –> 6.35mm adapters’)

*to plug into ‘pre-amp input port’ (2)*

(first plug in a 6.35mm adapter to the port)

(then plug in the ‘wireless receiver’ to the ‘adapter’)

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*the receiver is powered by 2 ‘re-chargeable lithium polymer batteries’*

(the batteries are included)

(USB micro-B charging port)

(takes ‘2 hours’ to charge’)

(when it is charging, there will be a ‘red light’ turned on underneath the port)

(once it is fully charged, the light turns ‘green’)

(battery life is approximately ‘6 hours’)

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(turn pre-amp ‘volume levels’ down when plugging in the ‘receiver’)

(to avoid ‘feedback’)

(slowly turn up the volume after wirelessly connecting a ‘mic’ to the ‘pre-amp’)

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*’short-press’ the ‘power button’ on ‘receiver’ to turn it on*

(the ‘blue battery light’ turns on underneath the ‘power button’)

(when battery power is low, the ‘blue light’ turns red)

*short-press’ the ‘power button’ again to turn off the ‘receiver’*

(the ‘blue battery light’ turns off)

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*charge the ‘transmitter’*

*there is a ‘*USB 5V micro-B port’ on the bottom of the ‘transmitter’)

(there will be a ‘red light’ underneath the ‘charging port’ while the ‘transmitter’ is charging)

(the light turns off when the ‘transmitter’ is fully charged)

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*there is a ‘3.5mm microphone port’ on the top of the ‘transmitter’*

(plug in your mics here)

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*’short-press’ the ‘power button’*

*the ‘front screen’ turns on*

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*top left corner* –>

*battery power monitor*

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*top right corner* –>

*antenna signal strength*

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*left/right buttons*

(use them to navigate between the 25 ‘frequency points’)

(but i count ’20’)

(‘U00’ – ‘U20’)

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*the ‘frequency’ is displayed in the ‘center’* –>

534.4 Mhz

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*when both the ‘transmitter’ + ‘receiver’ are powered on, a ‘blue light’ will turn on ‘receiver’ when they are properly connected*

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*RF / AF*

“‘radio frequency’ / ‘audio frequency’*

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*the ‘blue light’ will flash ‘green’ when there is an ‘audio signal’ from the microphones*

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*for problems with ‘frequency operation’* –>

*turn off ‘receiver’*

*turn on ‘transmitter’*

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*hold down 3 buttons at once* –>

‘left button’ / ‘right button’ / ‘power button’

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*let go when the ‘LCD screen’ starts flashing*

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*turn on ‘receiver’*

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*when the ‘blue light’ on the ‘receiver’ stops flashing, turn off the ‘transmitter’*

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*turn ‘transmitter’ back on*

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*try to connect the devices again*

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*👨‍🔬🕵️‍♀️🙇‍♀️*SKETCHES*🙇‍♂️👩‍🔬🕵️‍♂️*

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👈👈👈☜*“LAVALIER MICROPHONES”* ☞ 👉👉👉

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💕💝💖💓🖤💙🖤💙🖤💙🖤❤️💚💛🧡❣️💞💔💘❣️🧡💛💚❤️🖤💜🖤💙🖤💙🖤💗💖💝💘

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*🌈✨ *TABLE OF CONTENTS* ✨🌷*

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🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥