Boya BY-WM4 Pro K2From real comments

Verdict distilled from 27 mentions across 11 aspects in comments under product review videos.

Positive sentiment54%
PROS 54%
CONS 46%

Rank based on 27 mentions across 11 aspects

View the verdict as

Buy this if...

  • You want an affordable dual-transmitter wireless lavalier system under $200
  • You need to record two separate channels for interviews or dialogue
  • You mainly shoot vlogs, TikToks, or reels and want a clear voice upgrade

What users love

Skip this if...

  • You need rock-solid reliability with zero dropouts for professional work
  • Your camera or phone has known compatibility issues with 2.4GHz mic jacks
  • You need a system with more than two transmitters per receiver

What users complain about

Compare in seconds

Based on user comments

Best choice
1Premium
Lewitt MTP W950
Studio-quality vocal soundMinimal monitor and drum bleedTrusted for regular gig useDistracting large logoHigh price tag
Lewitt MTP W950
Studio-quality vocal sound
Minimal monitor and drum bleed
Trusted for regular gig use
Distracting large logo
High price tag
2Premium
Sennheiser MKH 8040
High Owner SatisfactionExceptional Sound ClarityGreat for Field RecordingHigh PriceNot Omnidirectional / More MuffledUltrasonic Self-Noise & Wind Rumble
Sennheiser MKH 8040
High Owner Satisfaction
Exceptional Sound Clarity
Great for Field Recording
High Price
Not Omnidirectional / More Muffled
Ultrasonic Self-Noise & Wind Rumble
3Premium
Sennheiser AVX
Reliable, plug-and-play operationClean, distortion-free audioSolid build quality
Sennheiser AVX
Reliable, plug-and-play operation
Clean, distortion-free audio
Solid build quality
4Premium
Lewitt LCT 640
Post-recording pattern flexibilityVersatile across instrumentsStrong, non-boomy low endPrice barrier for some buyersUnclear M/S and connector design questionsLacking low-mid presence on some vocals
Lewitt LCT 640
Post-recording pattern flexibility
Versatile across instruments
Strong, non-boomy low end
Price barrier for some buyers
Unclear M/S and connector design questions
Lacking low-mid presence on some vocals
5Mid
sE Electronics DynaCaster
Strong overall sound qualityVersatile onboard EQ switchesBuilt-in gain boostHigh price for some buyersUncertain added value over existing setupFiddly dip switches
sE Electronics DynaCaster
Strong overall sound quality
Versatile onboard EQ switches
Built-in gain boost
High price for some buyers
Uncertain added value over existing setup
Fiddly dip switches
6Mid
Shure Beta 57A
Smoother, clearer vocal sound than SM58/SM57Excellent on acoustic guitarDurable, long-lasting buildCan sound harsh in some applicationsAppearance not universally likedInconsistent noise rejection vs SM57
Shure Beta 57A
Smoother, clearer vocal sound than SM58/SM57
Excellent on acoustic guitar
Durable, long-lasting build
Can sound harsh in some applications
Appearance not universally liked
Inconsistent noise rejection vs SM57
7Mid
Sennheiser MD 441
Excellent sound on drums and vocalsStriking, attractive designRecognizable, notable reputation
Sennheiser MD 441
Excellent sound on drums and vocals
Striking, attractive design
Recognizable, notable reputation
8Premium
Telefunken ELA M 251
Smooth, warm characterCompetitive with top-tier micsFull-bodied, rich low endHard to distinguish from cheaper alternativesVery high pricePositioning-sensitive
Telefunken ELA M 251
Smooth, warm character
Competitive with top-tier mics
Full-bodied, rich low end
Hard to distinguish from cheaper alternatives
Very high price
Positioning-sensitive
9Premium
MXL V69M
Rivals the Neumann U67Warm, creamy tube toneAttractive appearance
MXL V69M
Rivals the Neumann U67
Warm, creamy tube tone
Attractive appearance
Best value
10Mid
Neumann TLM 193
Natural, unhyped tonePreferred over U87ai in blind testsLow sibilance / smooth highsAudible distortion noted at price pointCan sound muddy or bass-heavyCardioid-only, unlike multi-pattern siblings
Neumann TLM 193
Natural, unhyped tone
Preferred over U87ai in blind tests
Low sibilance / smooth highs
Audible distortion noted at price point
Can sound muddy or bass-heavy
Cardioid-only, unlike multi-pattern siblings
You are here
31Mid
Boya BY-WM4 Pro K2
Good sound quality for the priceDual transmitter interview setupAffordable valuePairing and connection problemsCamera compatibility issuesPlacement sensitivity
Boya BY-WM4 Pro K2
Good sound quality for the price
Dual transmitter interview setup
Affordable value
Pairing and connection problems
Camera compatibility issues
Placement sensitivity

Who wins on what

Ranked by what users actually praise

Overall Impression

Sound quality impresses most users once properly positioned. Reviewers describe the audio as fantastic, clear, and even better than the Rode system used in comparison. Placement matters though - one user found lowering the mic on the shirt reduced overloads, and another noted the sound only became 'meant to sound like' after repositioning higher, suggesting some EQ or placement tuning is needed to get the best results out of the mics.

Dual-channel recording works well for interviews but has some limits. Users confirmed the two transmitters record onto separate channels at the receiver, which helped with interview and dialogue setups. However, one comment noted that when two people spoke, one mic could overwrite the other, raising questions about true simultaneous two-person conversations rather than alternating dialogue.

Connectivity and reliability issues affect some buyers. Multiple commenters reported real problems: phones picking up the built-in mic instead of the Boya mics despite multiple pairing attempts, receivers failing to pair with transmitters out of the box, buzzing noise on a Canon EOS 6D, and one user experiencing intermittent audio dropouts they couldn't resolve even after a week of use, considering a return.

Outdated / Not-accurate data?