What's the difference between B/D and P/R channels on wireless microphones?

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Electro Voice RE-20 Cardioid Microphone


Electro Voice RE-20 Cardioid Microphone


$449.00


Vintage Commando Microphone, 415 Shure Brothers, 92


Vintage Commando Microphone, 415 Shure Brothers, 92″ Cord


$19.99


ART Pro Channel II mic instrument preamp with box and manual


ART Pro Channel II mic instrument preamp with box and manual


$180.00


CROWN PCC130 / PCC130SPP Pro Boundary Microphone *NIB


CROWN PCC130 / PCC130SPP Pro Boundary Microphone *NIB


$39.00


Cakewalk V Studio 100 USB Audio Interface + MXL 910 Condenser Mic+Free Shipping


Cakewalk V Studio 100 USB Audio Interface + MXL 910 Condenser Mic+Free Shipping


$359.00


M9pro Large-Diaphragm Phantom Powered Studio Condenser Microphone Set (Ship DHL)


M9pro Large-Diaphragm Phantom Powered Studio Condenser Microphone Set (Ship DHL)


$68.99


Shure PE 65L Dynamic Cable Professional Microphone with switch


Shure PE 65L Dynamic Cable Professional Microphone with switch


$44.95


Whirlwind Medusa Audio Snake: 16 inputs, 4 1/4


Whirlwind Medusa Audio Snake: 16 inputs, 4 1/4″ TRS returns, 250ft


$1,084.56


Whirlwind Medusa Audio Snake: 24 inputs, 4 XLR returns, 250ft


Whirlwind Medusa Audio Snake: 24 inputs, 4 XLR returns, 250ft


$1,340.56


Samsung Microphone Model YMC-2511


Samsung Microphone Model YMC-2511


$24.99


Whirlwind Medusa Audio Snake: 24 inputs, 8 XLR returns, 50ft


Whirlwind Medusa Audio Snake: 24 inputs, 8 XLR returns, 50ft


$603.58


10 Pack Colors Handheld Stage Microphone Windscreen Foam Mic Cover Karaoke DJ


10 Pack Colors Handheld Stage Microphone Windscreen Foam Mic Cover Karaoke DJ


$6.39


Professional Condenser Microphone Cardioid Studio Recording Mic w/ Shock Mount


Professional Condenser Microphone Cardioid Studio Recording Mic w/ Shock Mount


$0.01


Whirlwind Medusa Audio Snake: 16 inputs, 4 1/4


Whirlwind Medusa Audio Snake: 16 inputs, 4 1/4″ TRS returns, 100ft


$583.64


MXL 910 Voice/Instrument Condenser Microphone


MXL 910 Voice/Instrument Condenser Microphone


$109.00


MXL CR89 Large Diaphragm Condenser Microphone Black Chrome


MXL CR89 Large Diaphragm Condenser Microphone Black Chrome


$348.00


Whirlwind Medusa Audio Snake: 24 inputs, 0 returns, 50ft


Whirlwind Medusa Audio Snake: 24 inputs, 0 returns, 50ft


$521.97


NEW - Tascam TM-ST1 Mid-Side Stereo Microphone


NEW – Tascam TM-ST1 Mid-Side Stereo Microphone


$68.87


Dynamic Microphone - Hand-Held or Stand - Stagg Brand Model MD-1500


Dynamic Microphone – Hand-Held or Stand – Stagg Brand Model MD-1500


$7.50


FM Wireless Microphone Receiver - Gemini #VH180


FM Wireless Microphone Receiver – Gemini #VH180


$5.00


gooseneck flexible mic extension *Black* 13


gooseneck flexible mic extension *Black* 13″ inch on-stage stands gear


$13.50


2 PCS Red Microphone Grill Foam Cover Audio Mic Shield


2 PCS Red Microphone Grill Foam Cover Audio Mic Shield


$0.79


Wireless FM Transmitter Receiver Lavalier Lapel Clip Microphone Mic System USA


Wireless FM Transmitter Receiver Lavalier Lapel Clip Microphone Mic System USA


$0.01


gooseneck flexible mic extension *Black* 6


gooseneck flexible mic extension *Black* 6″ inch on-stage stands gear


$14.98


Vintage Shure Model 55s Unidyne Dynamic Microphone w/ Stand And Cord


Vintage Shure Model 55s Unidyne Dynamic Microphone w/ Stand And Cord


$275.00


Hosa MHD-3 Threaded US to Euro Mic Clip Adaptor to Stand NEW


Hosa MHD-3 Threaded US to Euro Mic Clip Adaptor to Stand NEW


$5.99


Record Studio Microphone Mic Wind Screen Pop Filter Mask Shied


Record Studio Microphone Mic Wind Screen Pop Filter Mask Shied


$8.99


Whirlwind Medusa Standard Audio Snake: 24 inputs, 8 XLR returns, 250ft


Whirlwind Medusa Standard Audio Snake: 24 inputs, 8 XLR returns, 250ft


$1,488.93


Neumann TLM 102 Condenser Microphone


Neumann TLM 102 Condenser Microphone


$480.00


Crown Audio PCC-160 Phase Coherent Cardioid Microphone


Crown Audio PCC-160 Phase Coherent Cardioid Microphone


$254.99


Oktavamod joly mod MXL R40 Ribbon Microphone


Oktavamod joly mod MXL R40 Ribbon Microphone


$399.00


BEHRINGER EURORACK UB1002FX MIXER 2 BUS MIC/LINE SOME PATCH WIRES NO POWER CORD


BEHRINGER EURORACK UB1002FX MIXER 2 BUS MIC/LINE SOME PATCH WIRES NO POWER CORD


$44.95


Whirlwind Audio Snake 12 XLR Female to 12 XLR Male, 10', Fan to Fan


Whirlwind Audio Snake 12 XLR Female to 12 XLR Male, 10′, Fan to Fan


$155.84


Microphone New Yeti for the Artist in you


Microphone New Yeti for the Artist in you


$130.00


2000W PROFESSIONAL AMPLIFIER KARAOKE KJ/DJ/VJ MIXER CLUB SYSTEM w/ WIRELESS MIC


2000W PROFESSIONAL AMPLIFIER KARAOKE KJ/DJ/VJ MIXER CLUB SYSTEM w/ WIRELESS MIC


$4,114.95


Microphone P615


Microphone P615


$30.00


CLARICON GUITAR MICROPHONE


CLARICON GUITAR MICROPHONE


$5.00


Beyerdynamic MSG 248 Condenser Microphones Phantom Power Pack Pro Audio


Beyerdynamic MSG 248 Condenser Microphones Phantom Power Pack Pro Audio


$29.00


Canare vintage cable 3 pin to rca blue  3 feet


Canare vintage cable 3 pin to rca blue 3 feet


$9.95


Blk Studio Microphone Mic Wind Screen Pop Shield Filter


Blk Studio Microphone Mic Wind Screen Pop Shield Filter


$3.99


AKG D750


AKG D750


$18.00


Microphone Pvi100


Microphone Pvi100


$20.00


5 pack small foam covers Windscreen Windshield for lavalier lapel microphone  .


5 pack small foam covers Windscreen Windshield for lavalier lapel microphone .


$0.99


Comtek Pouch


Comtek Pouch


$10.00


Lectrosonics UMC200D Multicoupler


Lectrosonics UMC200D Multicoupler


$500.00


Comtek BSA-72 Base Station


Comtek BSA-72 Base Station


$75.00


Holophone H4 Super Mini Surround Sound Microphone with Rycote Windjammer


Holophone H4 Super Mini Surround Sound Microphone with Rycote Windjammer


$1,800.00


DPA DAD6001-BC (MicroDot to 3-Pin XLR (P48))


DPA DAD6001-BC (MicroDot to 3-Pin XLR (P48))


$100.00


Eartec PCx-1000 Communication System


Eartec PCx-1000 Communication System


$1,750.00


Lectrosonics M152/WP Waterproof Lav Microphone


Lectrosonics M152/WP Waterproof Lav Microphone


$150.00


Shure SM57 Dynamic Cable Professional Microphone


Shure SM57 Dynamic Cable Professional Microphone


$40.00


Sennheiser EW 100 G2 Wireless Microphone System - No Reserve - Free Shipping


Sennheiser EW 100 G2 Wireless Microphone System – No Reserve – Free Shipping


$225.00


Shure BETA 98ADC Mini Cardioid Condenser Microphone w Flex Neck Rim Mount


Shure BETA 98ADC Mini Cardioid Condenser Microphone w Flex Neck Rim Mount


$160.00


Du Sung 1090 Hi. Tone Condenser Stick Type Microphone


Du Sung 1090 Hi. Tone Condenser Stick Type Microphone


$9.95


Shure SLX Beta58 Handheld Wireless System


Shure SLX Beta58 Handheld Wireless System


$639.00


EV RE90Lat Lapel Microphone With Telex Clip Ultra Mini Omnidirectional Condensor


EV RE90Lat Lapel Microphone With Telex Clip Ultra Mini Omnidirectional Condensor


$49.99


Sennheiser NT3-1 Power Supply for AC 3 Antenna Combiner G3 Wireless Systems NEW


Sennheiser NT3-1 Power Supply for AC 3 Antenna Combiner G3 Wireless Systems NEW


$99.95


Audio Technica Kingdon WR 8 Diversity Lapel System Complete 184.200 MHz


Audio Technica Kingdon WR 8 Diversity Lapel System Complete 184.200 MHz


$125.00


K & M Konig & Meyer Fat Tube Music Speaker Laptop Microphone Stand - Germany


K & M Konig & Meyer Fat Tube Music Speaker Laptop Microphone Stand – Germany


$59.99


Sony ECM16 Electret Condenser Lapel Mic w/ 3.5mm jack


Sony ECM16 Electret Condenser Lapel Mic w/ 3.5mm jack


$46.08


SHURE SM7, SM 7 DYNAMIC VOCAL MIC - US MADE VERSION - AMAZING VINTAGE CONDITION!


SHURE SM7, SM 7 DYNAMIC VOCAL MIC – US MADE VERSION – AMAZING VINTAGE CONDITION!


$899.99


Whirlwind Medusa Audio Snake: 16 inputs, 0 returns, 100ft


Whirlwind Medusa Audio Snake: 16 inputs, 0 returns, 100ft


$461.42


Audio Technica AT4047MP Multi-Pattern Condenser Microphone


Audio Technica AT4047MP Multi-Pattern Condenser Microphone


$700.00


1 M-11 TOA 900 Series II Amplifier Module in Original Box Microphone Module


1 M-11 TOA 900 Series II Amplifier Module in Original Box Microphone Module


$12.99


4x Audio Technica ATW-R19 UHF Diversity Wireless Microphone Receiver 1x ATW-D70


4x Audio Technica ATW-R19 UHF Diversity Wireless Microphone Receiver 1x ATW-D70


$116.99


Audio Technica M4000S


Audio Technica M4000S


$30.00


Black ABS Triangular Microphone Logo Station For Interview Self-image Improve


Black ABS Triangular Microphone Logo Station For Interview Self-image Improve


$3.99


Green Sponge Square Cube Microphone Station For Logo Printed Self-image Improve


Green Sponge Square Cube Microphone Station For Logo Printed Self-image Improve


$0.99


Black Hard Sponge Square Cube Microphone Mic Station For Logo Self-image Improve


Black Hard Sponge Square Cube Microphone Mic Station For Logo Self-image Improve


$0.79


Atlas Sound Corp AD-12 19


Atlas Sound Corp AD-12 19″ inches Gooseneck With EV Electro Voice Microphone 358


$60.00


Gator GX-33 Microphone and Stand Bag


Gator GX-33 Microphone and Stand Bag


$49.99


TESTED! Vintage SONY Dynamic MICROPHONE F-510 FAST SHIPPING!


TESTED! Vintage SONY Dynamic MICROPHONE F-510 FAST SHIPPING!


$22.99


Shure BETA-89 Reciever


Shure BETA-89 Reciever


$29.99


360°Flexible Studio Microphone Wind Screen Pop Filter


360°Flexible Studio Microphone Wind Screen Pop Filter


$11.37


Blue Microphones Yeti USB Microphone


Blue Microphones Yeti USB Microphone


$126.99


Blue tube mic pre Robbie


Blue tube mic pre Robbie


$499.99


Sterling Vocal Microphone Shield- Universal Stand Holder- In Box


Sterling Vocal Microphone Shield- Universal Stand Holder- In Box


$41.99


EV N/D767a Microphone Electro Voice With Gig Bag Stand Clip Instructions


EV N/D767a Microphone Electro Voice With Gig Bag Stand Clip Instructions


$99.99


Vintage Midland 22-218 Microphone with the stand


Vintage Midland 22-218 Microphone with the stand


$4.99


Neutrik (Lot of) 100' & 50' High Clarity Microphone Cables XLR M/F Nice Deal!


Neutrik (Lot of) 100′ & 50′ High Clarity Microphone Cables XLR M/F Nice Deal!


$98.00


Shure 515SDX Cardioid Dynamic Microphone 515 SDX NEW IN BOX NIB    FREE SHIPPING


Shure 515SDX Cardioid Dynamic Microphone 515 SDX NEW IN BOX NIB FREE SHIPPING


$45.62


Shure Wireless System


Shure Wireless System


$499.00


48V DC Single Phantom Power Supply Unit For Condensor Microphone Studio Pro New


48V DC Single Phantom Power Supply Unit For Condensor Microphone Studio Pro New


$27.99


Microphone Louvered Trapezoid Metal Pop Filter 9


Microphone Louvered Trapezoid Metal Pop Filter 9″ Huge Windscreen Studio Top Pro


$24.99


Mic Stereo Bar Black T-Bar Thread Adapter Stand H50 Tbar Dual Support Mount Pro


Mic Stereo Bar Black T-Bar Thread Adapter Stand H50 Tbar Dual Support Mount Pro


$11.49


VINTAGE MIC SONY F-96 USED IN CASE


VINTAGE MIC SONY F-96 USED IN CASE


$3.99


Microphone Swivel Shock Mount Holder Hard Metal Stands Accessory Side H200 Mic


Microphone Swivel Shock Mount Holder Hard Metal Stands Accessory Side H200 Mic


$16.49


Microphone Fur Windscreen for Zoom H4n Handheld Recorder Handy Mobile Muff H4 DR


Microphone Fur Windscreen for Zoom H4n Handheld Recorder Handy Mobile Muff H4 DR


$12.49


3 PAK 25' HOTWIRES MIC CABLES XLR - XLR LIFETIME WARRANTY


3 PAK 25′ HOTWIRES MIC CABLES XLR – XLR LIFETIME WARRANTY


$22.95


Audix OM2-S Dynamic Microphone Cable Professional Microphone


Audix OM2-S Dynamic Microphone Cable Professional Microphone


$60.00


Microphone Clip Clamp Stand Shock Mount Soft Rubber Condenser Holder Pro 21-26mm


Microphone Clip Clamp Stand Shock Mount Soft Rubber Condenser Holder Pro 21-26mm


$13.39


10x Multicolor Microphone Windscreen Foam Grill Color Cover Sponge Audio Shield


10x Multicolor Microphone Windscreen Foam Grill Color Cover Sponge Audio Shield


$6.59


Condenser Microphone Cardioid Audio Studio Vocal Recording Mic with desk tripod


Condenser Microphone Cardioid Audio Studio Vocal Recording Mic with desk tripod


$9.85


Condenser Sound Professional Microphone Mic w/ Stand Skype Youtube PC Laptop


Condenser Sound Professional Microphone Mic w/ Stand Skype Youtube PC Laptop


$9.85


9x Multicolor Microphone Windscreen Foam Grill Color Wheel Cover Sponge Concave


9x Multicolor Microphone Windscreen Foam Grill Color Wheel Cover Sponge Concave


$10.49


Microphone Shock Mount Clip For Condenser Elastic Suspension Clamp C414 C2000B


Microphone Shock Mount Clip For Condenser Elastic Suspension Clamp C414 C2000B


$21.99


Microphone Fur Windscreen For Zoom H1 Handheld Recorder Handy Mobile Muff Pro


Microphone Fur Windscreen For Zoom H1 Handheld Recorder Handy Mobile Muff Pro


$7.99


Radio Shack Microphone PRO-302 Professional Unidirectional Dynamic New


Radio Shack Microphone PRO-302 Professional Unidirectional Dynamic New


$24.00


RARE SHURE PE5H HIZ Microphone with zippered carrying case - USA


RARE SHURE PE5H HIZ Microphone with zippered carrying case – USA


$49.99


MXL D.R.K. - MAC Desktop Recording Kit White MAC - 3 DAY AUCTION!!!


MXL D.R.K. – MAC Desktop Recording Kit White MAC – 3 DAY AUCTION!!!


$30.00


I’m buying a wireless microphone kit and i need to select one of the two options and i don’t know which each does.


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