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Description
Sennheiser EW-DX SK 3-PIN Digital Wireless Bodypack Transmitter with 3-Pin LEMO Connector - R1-9: 520 to 607 MHzFor EW DX Digital Wireless Receivers Use with Lav Headset Mic or Instrument 3 Pin LEMO Connector 134 dB of Dynamic Range, 24 Bit Audio 3480 Frequencies on Equidistant Grid e Ink Display Durable Metal Housing Set Up Operate from Receiver or Phone In Device Charging 8 Hour AA 12 Hour Rechargeable Battery The Sennheiser EW DX SK 3 PIN is a digital bodypack wireless transmitter compatible with EW DX wireless receivers. Lightweight and comfortable for
- For EW-DX Digital Wireless Receivers
- Use with Lav/Headset Mic or Instrument
- 3-Pin LEMO Connector
- 134 dB of Dynamic Range, 24-Bit Audio
- 3480 Frequencies on Equidistant Grid
- e-Ink Display
- Durable Metal Housing
- Set Up/Operate from Receiver or Phone
- In-Device Charging
- 8-Hour AA /12-Hour Rechargeable Battery
The Sennheiser EW-DX SK 3-PIN is a digital bodypack wireless transmitter compatible with EW-DX wireless receivers. Lightweight and comfortable for performers and presenters to wear, the bodypack features a rugged, all-metal housing well suited for daily use in conference rooms, houses of worship, or on stage.
The EW-DX SK 3-PIN is equipped with a 3-pin LEMO connector that accommodates the compatible lavalier or headset microphone of your choice, or an adapter cable for guitar and bass. With a remarkable 134 dB dynamic range on its input, the transmitter can handle a wide variety of sound sources, including loud vocalists and performers, connections to musical instruments, and even line-level signals from mixers, all without requiring any gain adjustment.
Features at a Glance
- The EW-DX SK 3-PIN features a mute button that can be locked out and overridden from the receiver or a mobile device during a performance. It quickly pairs with the receiver via Bluetooth at a distance up to 120', at the press of a button.
- The persistent e-Ink display helps you quickly name and identify the transmitter and allows you to see parameters, even when the unit is powered off.
- The transmitter provides up to 8 hours of operation on two AA batteries (included) or 12 hours with a BA 70 lithium-ion rechargeable battery pack (available separately). External charging ports allow for in-transmitter charging using the CHG 70N network charging dock (available separately).
- The EW-DX 3-PIN system utilizes an equidistant tuning grid that equally spaces 3480 frequencies across its wide 87 MHz bandwidth to prevent disruptive intermodulation issues that occur when multiple transmitters operate in confined spaces.
- The system can be expanded with multiple transmitters and receivers to offer up to 146 channels in equidistant tuning grid mode, and up to 293 channels in Link Density mode.
- The EW-DX SK 3-PIN is backward-compatible with EW-D receivers.
Compatible Mics and Instrument Cable with 3-Pin LEMO Connector
- The sweat-resistant, subminiature MKE 2 omnidirectional lavalier mic offers a pristine, broadcast-quality sound and is easy to conceal.
- The unobtrusive ME 2 omnidirectional lavalier mic provides a forgiving pickup pattern that captures sound equally well in every direction.
- The ME 4 cardioid lavalier mic offers a narrower, feedback-resistant pickup pattern for louder events.
- The ME 3 cardioid headset mic provides enhanced speech clarity for lectures and presentations.
- The CI 1 instrument cable lets you connect the bodypack transmitter to a guitar, bass, or keyboard.
Sennheiser EW-DX SK Specs
| Wireless Technology | Digital UHF |
| RF Frequency Band | R1-9: 520 to 607.8 MHz |
| RF Bandwidth | 87 MHz |
| Frequency Step Size | 25 kHz |
| RF Channel Scanning | Auto-Scan |
| Max Operating Range | 328.1' / 100 m (Line of Sight) |
| Built-In Recorder | No |
| Control App Support | Yes, Available for Android/iOS |
| Bluetooth | 5.1 LE |
| Bluetooth Operating Distance | 120' / 36.6 m (Transmitter Sync, App Control) |
| Sample Rate/Resolution | 24-Bit |
| Latency | 1.9 ms |
| Encryption | AES 256 |
Transmitter
| Transmitter Type | Bodypack |
| RF Output Power | 10 mW (ERP) 10 mW (EIRP) |
| Audio I/O | 1 x LEMO 3-Pin Female Input (Lockable) |
| Included Cable Connector | None |
| Muting | Mute Switch |
| Audio Input Level | 2 to 4.35 V |
| Auto-Level Control | No |
| Frequency Response | 20 Hz to 20 kHz -3 dB |
| Sync Method | Bluetooth |
| Antenna | 1 x Flexible Whip, Fixed (Beltpack) |
| Power Requirements | Battery |
| Battery Type | 2 x AA (Included) 1 x Sennheiser Battery Pack (Not Included) |
| Approx. Battery Life | 8 Hours (Alkaline) 12 Hours (Sennheiser Battery Pack) |
| Display & Indicators | 1 x Backlit LCD (Battery Status, Mute) |
| Housing | Metal |
| Operating Temperature | 14 to 131°F / -10 to 55°C |
| Operating Humidity | 5 to 95% |
| Dimensions | 2.5 x 3.3 x 0.8" / 63 x 85 x 20 mm |
| Weight | 4.2 oz / 120 g (without Batteries) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
So easy and convenient for everyday bottle washing
I’ve been using these Momcozy washing blocks with the KleanPal Pro baby bottle washer, and they work exactly as intended. The tablets dissolve fully during the wash and leave bottles, pump parts, and accessories coming out clean with no residue or strong scent.
What I like most is the convenience. There’s no measuring or spilling liquid detergent, and each tablet is perfectly portioned. It makes the whole washing process quicker and more consistent, especially when you’re washing bottles multiple times a day.
They’ve been gentle on all of my baby items and haven’t caused any cloudiness or buildup on bottles or nipples. Overall, these are a simple and reliable refill to keep the washer running smoothly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
★★★★★ 5
Compact and comes with many!
I recently tried the Mom Cozy detergent blocks for the bottle washer, and I'm thoroughly impressed. These tiny blocks come in small, compact bags, making them incredibly easy to store and use. Despite their size, they pack a powerful cleaning punch, leaving bottles sparkling clean and free of residue.
I love how convenient they are – just pop one into the washer, and you're good to go. Plus, the fact that they come in bags with many blocks ensures I won't run out anytime soon. If you're looking for a hassle-free and effective cleaning solution for your baby bottles, these Mom Cozy detergent blocks are a must-try!
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Reviewed in the United States on February 15, 2026
★★★★★ 5
Great cleaner
Great great! Cleans perfectly and easy to use, just drop it in the bottle washer. Super time saving and great value.
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Reviewed in the United States on March 25, 2026
★★★★★ 5
A Game-Changer for Breastfeeding Moms!
I was a bit skeptical about buying a specialized bottle washing block at first, but I'm so glad I took the plunge! The Momcozy Official Washing Block is a total game-changer for breastfeeding moms like myself. This product has made my life as a nursing mom so much easier and more convenient.
First of all, let me just say that this block is SUPER easy to use. It's simple to pop in a dirty bottle into the machine, and before you know it, your bottles are sparkling clean and ready for reuse. The block itself is also very compact and lightweight, making it easy to store in my nursing bag or diaper bag.
But what really sets this product apart is its ability to get out even the toughest stains and residue. I've tried other bottle washing methods before, but nothing compares to the effectiveness of this block. My bottles come out looking like new every time!
The best part? The Momcozy Official Washing Block is affordable and makes a great investment for any breastfeeding mom. Trust me when I say that you won't regret buying this product!
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Reviewed in the United States on December 27, 2025
★★★★★ 5
Amazing
The Momcozy Bottle Washer Tablets have been such a great addition to our daily routine. As a busy parent, anything that makes cleaning bottles easier is a huge win, and these tablets really do the job well.
They dissolve quickly and help remove milk residue and buildup from bottles, pump parts, and other baby feeding accessories. After using them, everything comes out clean, fresh, and residue-free, which gives me peace of mind knowing my baby’s items are properly sanitized.
I also love how convenient they are. Instead of measuring or dealing with messy liquids, you simply drop a tablet in and let it work. It saves time and makes the whole process much simpler, especially during those busy days and late-night bottle cleanups.
Another plus is that they seem gentle but effective, which is important when cleaning items used for babies.
Overall, these tablets are easy to use, effective, and a real time saver. I would definitely recommend them to other parents looking for a simple and reliable way to keep baby bottles and feeding supplies clean. I will absolutely be purchasing them again! ✨
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Reviewed in the United States on March 7, 2026
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