All marketsDigital wireless microphone systemsSony
Sony · ECM-W3
ECM-W3
A two-transmitter digital wireless kit whose receiver can pass digital audio and power through compatible Sony Multi Interface Shoe cameras or analog audio to other equipment
Market statusCurrent dual-channel Sony camera-ecosystem wireless systemChecked Aug 17
Reference price$279.99 current U.S. dual-system referenceCurrent B&H and Sony U.S. ECM-W3 package with two microphone-transmitters, one receiver and charging case
Next full checkAug 24, 2026Price checks run sooner
01
Ready to buy
Confirm the exact regional SKU and package
The retained reference is $279.99 current U.S. dual-system reference. Verify the exact camera's digital MI-Shoe support and the included two-transmitter ECM-W3 rather than ECM-W3S; test any external lavalier plug before the return period. Recheck legal frequencies, firmware, support, return terms and every included component before paying.
Buying stageMarket familiarity
02
Current market
The facts that change the ownership choice
Each line carries its own check date because price, software, specifications, and product cycle do not age at the same speed.
QuestionCurrent answerFreshnessBasis
Current price
$279.99 current U.S. dual-system reference
Verify the exact camera's digital MI-Shoe support and the included two-transmitter ECM-W3 rather than ECM-W3S; test any external lavalier plug before the return period. Confirm checkout price, stock and package contents.
Refresh due after 7 daysDirect source1 evidence item
Market branch
Camera-ecosystem-native two-person system
Checked 7 days agoOur synthesis2 evidence items
Purchase boundary
The strongest integration requires a compatible Sony camera and MI Shoe, locking-TRS lavaliers are not universally compatible with the transmitter input, and the 150 m figure assumes visibility and favorable radio conditions
Checked 7 days agoOur synthesis3 evidence items
Band and regional use
ECM-W3 uses a region-certified digital shared-spectrum radio link; country-specific approvals and local coexistence still apply even though no U.S. television-band SKU is selected
Checked 7 days agoDirect source3 evidence items
RF and range
Two transmitters feed the dual receiver, with a stated 150 m maximum only when the microphone is visible from the receiver; metal, people and reflected radio energy can shorten it
Checked 7 days agoDirect source2 evidence items
Audio and processing
Compatible Sony cameras can receive a direct digital signal through the MI Shoe, while noise-cut and low-cut processing cannot guarantee intelligibility or repair poor placement
Checked 7 days agoDirect source2 evidence items
Microphones and connectors
Each transmitter has an integrated microphone and a 3.5 mm mono external input; the receiver offers MI-Shoe digital or analog paths, and locking-TRS lav wiring requires an exact compatibility check
Checked 7 days agoDirect source2 evidence items
Power and runtime
Components use built-in rechargeable batteries; the receiver is stated around three hours on analog output and can receive MI-Shoe power on compatible cameras, so the exact camera path changes runtime
Checked 7 days agoDirect source2 evidence items
Package and compatibility
The kit includes two microphone-transmitters, dual receiver, charging case, windscreens and mounting pieces; it does not provide transmitter backup recording or production timecode
Checked 7 days agoDirect source3 evidence items
Current verdict
The lowest-cable Sony camera fit
ECM-W3 is coherent for a compatible Sony camera owner who values MI-Shoe digital audio and power more than cross-brand flexibility, local backup recording or timecode.
Checked 7 days agoOur synthesis8 evidence items
03
Other paths
The alternatives change what the ECM-W3 is worth
These are not generic competitors. Each one represents a different way to buy into the same market.
01lower upfront
DJI
Mic 3 (2 TX + 1 RX + Charging Case)
$207 current promoted U.S. complete-kit reference
Best fit
Compact creator system with timecode and multi-receiver growth
Tradeoff
Mic 3 transmitters have no 3.5 mm external lavalier input, the 400 m figure is an unobstructed no-interference test, and 32-bit float applies to internal files rather than every wireless output
$278.99 current authorized U.S. complete-kit reference
Best fit
Complete two-person creator and location kit
Tradeoff
The 260 m figure is a manufacturer line-of-sight result, timecode must be configured for the camera workflow, and 32-bit-float files cannot repair capsule overload, clothing noise or an unrecorded source
Older observations stay in the ledger when the current view changes. That lets a buyer tell the difference between an old complaint, an active issue, and a problem that was corrected.
notable
Current U.S. exact-SKU position retained
ECM-W3 was checked against its manufacturer and support record, exact current package price, FCC boundaries, independent editorial and bounded owner evidence.
Price record
The price history starts here
Each amount stays tied to its source and capture date. Conflicting prices remain visible until the seller resolves them.
$279.99 current U.S. dual-system reference
Current reference priceA structured timeline will begin with the next source capture
05
Owner experience
What repeats after the purchase
Owner discussion returns to camera compatibility, mi-shoe power, external-lavalier plugs and analog versus digital output rather than specifications alone.
These are self-reported experiences from changing owners, locations, firmware and RF conditions. They identify questions to test and do not establish sound quality, range, dropout or failure rates.
SignalWhat owners reportOur readEvidence
camera compatibility, MI-Shoe power, external-lavalier plugs and analog versus digital output
Owners report that some locking lavaliers used with other Sony wireless systems do not work on ECM-W3. The reports define a compatibility test, not a universal connector rule.
Check the exact camera support table, test the chosen lav plug and record through both the intended MI-Shoe and fallback analog path before keeping the kit.
1 evidence record
06
Sources
Why we believe the current view
The page separates what a source states directly from what we conclude across sources.
01
ECM-W3 manufacturer recordSony · identity
Sony identifies the exact ECM-W3 configuration as a two-transmitter digital wireless kit whose receiver can pass digital audio and power through compatible Sony Multi Interface Shoe cameras or analog audio to other equipment.
Sony ECM-W3 current dual-channel kitB&H Photo · price
B&H retained the exact ECM-W3 two-transmitter and dual-receiver kit as current; Sony's simultaneous U.S. direct reference was $279.99 with the charging case and accessories.
ECM-W3 support, manual and specificationsSony · specification
Sony support material documents this exact compatibility and ownership boundary: The strongest integration requires a compatible Sony camera and MI Shoe, locking-TRS lavaliers are not universally compatible with the transmitter input, and the 150 m figure assumes visibility and favorable radio conditions
Current wireless microphone and WMAS frequency rulesFederal Communications Commission · specification
Current FCC rules preserve specific Part 15 and Part 74 segments and conditions; professional use alone does not authorize every frequency or create Part 74 eligibility.
Sony ECM-W3 reviewDigital Camera World · specification
Independent camera-oriented coverage tests the ECM-W3 integration and controls without converting a Sony-body workflow into universal compatibility or quality.
Owners report that some locking lavaliers used with other Sony wireless systems do not work on ECM-W3. The reports define a compatibility test, not a universal connector rule.
Mic 3 (2 TX + 1 RX + Charging Case) alternativeDJI · alternative
Mic 3 (2 TX + 1 RX + Charging Case) is the compact creator system with timecode and multi-receiver growth alternative at $207 current promoted U.S. complete-kit reference.
Manufacturer identity, current exact-SKU price, support material, independent editorial and bounded owner evidence were checked on August 17, 2026. U.S. television-band operation is limited to current locally available segments; 608–614 MHz Channel 37 is protected, and 617–652 plus 663–698 MHz are not general wireless-microphone bands. Part 74 eligibility is not created by calling a user professional. Shared-spectrum systems remain region-certified and subject to Wi-Fi, Bluetooth and other occupancy. Auto scan and app geofencing do not replace coordination. Channel count and range are conditional manufacturer figures, not guarantees. Encryption applies only where documented and does not create end-to-end security. Local 32-bit-float recording cannot repair capsule overload, clothing noise, poor placement or a source that was not recorded. No record makes a universal sound-quality, intelligibility, interference-free, reliability or failure-rate claim.