CME

CME WIDI Master Premium Bluetooth MIDI Adapter | 5-pin DIN, Ultra Low 3ms Latency, No Battery, Powered via MIDI Out

Name: CME WIDI Master Premium Bluetooth MIDI Adapter | 5-pin DIN, Ultra Low 3ms Latency, No Battery, Powered via MIDI Out
Brand: CME
SKU: B08F8F57JX
Price: 59.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-15

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$59.99

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🛒 See live eBay price Also on Amazon — View Current Price → Compare to similar audio & midi

*Price sourced from Amazon.com. Last updated 2026-04-20. Price and availability subject to change.

Bottom line: The CME WIDI Master Premium Bluetooth MIDI Adapter | 5-pin DIN, Ultra Low 3ms Latency, No Battery, Powered via MIDI Out is a specs-and-price decision rather than a crowd-consensus one in the audio & midi category, priced around $59.99. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

The CME WIDI Master is a 5-pin DIN Bluetooth MIDI adapter that cuts the cable run between your keyboard, synth, drum machine, or sound module and whatever you are playing it from. It draws power directly from your device's MIDI Out jack, so there are no batteries to swap mid-set and nothing to recharge before a session. CME rates latency at just 3ms between two WIDI units, with sub-1ms jitter and Adaptive Frequency Hopping to hold timing steady up to 65 feet (20m) line-of-sight. Full MIDI message support includes SysEx and MPE, so expressive controllers and patch dumps both pass through…

SpecPicks Verdict

SpecPicks scored CME WIDI Master Premium Bluetooth MIDI Adapter | 5-pin DIN, Ultra… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the audio & midi category. CME's audio & midi lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for audio & midi of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Frequently Asked Questions

Does the WIDI Master need batteries or a power supply?

No. It is powered directly through your device's 5-pin MIDI Out jack, so there are no batteries to replace and no charging cable.

How much latency does it actually add?

CME rates it at 3ms between two WIDI devices, with sub-1ms jitter. That figure is WIDI-to-WIDI; links to a phone or computer depend on that host's Bluetooth stack.

Will it work with my synth or keyboard?

It needs standard 5-pin DIN MIDI In/Out jacks. CME maintains a compatibility lookup at bluetoothmidi.com to check your specific device before you buy.

Can I just pair it from my phone's Bluetooth settings?

No. General Bluetooth pairing does not work for Bluetooth MIDI. Update the firmware through the WIDI App first, then follow CME's exact pairing steps for your OS.

Does it pass SysEx and MPE data?

Yes. It sends all MIDI messages including SysEx patch dumps and MPE, so expressive controllers and librarian software both work over the wireless link.

Pros & Cons

Pros

✓ Backed by CME's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

[Get rid of those cables] Add Bluetooth MIDI to your MIDI devices and reduce the cable clutter in the studio. Enjoy freedom on stage. Powered via MIDI Out. No batteries needed. Check out bluetoothmidi(dot)com to find out if your device is compatible.
[Plug, Pair & Play] Pair automatically between WIDI devices and Bluetooth MIDI controllers. Send all MIDI messages, incl. SysEx & MPE. Connect manually with iOS, macOS, Win10/11 & Android via simple step by step guides. Detachable design for keytar & EWI.
[Ultra-Low Latency & Stability] WIDI delivers just 3 ms latency between two (2) devices with Smart Connectivity Algorithms, plus ultra-stable sub-1 ms jitter for precise timing. Adaptive Frequency Hopping minimizes interference and ensures reliable performance up to 65 ft (20m) line-of-sight
[Personalize Performance] Discover WIDI App (iOS/Android) for lifetime updates, automatic group learning and personalized settings. Optimize performance for latency or jitter. Create MIDI merge/split setups via Bluetooth MIDI groups with up to 5 devices.
[!! Attention !!] General Bluetooth pairing does not work for Bluetooth MIDI. Update firmware via WIDI App first. Follow the exact pairing instructions for optimal performance. Get 24/7 support via bluetoothmidi(dot)com.

Full Specifications

Brand	CME
Unit Count	1.0 Count
Connectivity	Bluetooth
Model Number	WIDI Master
Compatibility	Android, iOS, Mac
Item Type Name	Wireless MIDI adapter via Bluetooth 5.0 for 5-PIN DIN MIDI devices with MIDI Power over MIDI Out.
Number of Channels	16
Included Components	1x WIDI Master (S-WM00B11)
Maximum Sample Rate	0.4 KHz
Warranty Description	1 year manufacturer.
Connectivity Technology	5-pin DIN MIDI I/O, Premium Bluetooth MIDI
Manufacturer Part Number	WM1
Item Dimensions D x W x H	1"D x 4"W x 7"H
Global Trade Identification Number	08885011101166

Ready to buy?

CME WIDI Master Premium Bluetooth MIDI Adapter | 5-pin DIN, Ultra Low 3ms Latency, No Battery, Powered via MIDI Out is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-04-20. Price and availability subject to change.