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Description
Motorola PMMN4125B Remote Speaker Microphone for SL300 & SL3500e (RM250)Motorola PMMN4125B RM250 Wired Remote Speaker Microphone (IP67) The Motorola PMMN4125B (RM250) is a rugged, wired Remote Speaker Microphone (RSM) designed for professionals requiring dependable communication and superior durability. This RSM boasts an excellent IP67 waterproof rating, ensuring it remains fully functional after submersion in water and is dust tight for harsh environmental use. The Motorola PMMN4125B is the updated version of the
Motorola PMMN4125B
RM250 Wired Remote Speaker Microphone (IP67)
The Motorola PMMN4125B (RM250) is a rugged, wired Remote Speaker Microphone (RSM) designed for professionals requiring dependable communication and superior durability. This RSM boasts an excellent IP67 waterproof rating, ensuring it remains fully functional after submersion in water and is dust-tight for harsh environmental use. The Motorola PMMN4125B is the updated version of the Motorola PMMN4125A and Motorola PMMN4125.
This RSM features a windporting microphone to eliminate background noise and includes an integrated battery providing up to 22 hours of life on a standard 5/5/90 duty cycle, with a typical 2-hour charge time. The Motorola PMMN4125B also includes a 3.5mm non-threaded audio jack for discreet communication and is compatible with the compact MOTOTRBO SL and TLK series radios.
Key Features
- Extreme IP67 Rating: Fully protected against dust ingress and water immersion, guaranteeing reliability in tough and wet environments.
- Integrated 22-Hour Battery: High-capacity battery built into the microphone ensures long operational periods and supports multi-shift usage.
- Windporting Technology: The microphone is engineered to suppress ambient noise and wind, delivering loud, clear audio transmission even in adverse conditions.
- Discreet Audio Jack: Includes a 3.5mm non-threaded audio jack for connecting a receive-only earpiece for private communications.
- Kit Includes Charging Cable: Supplied with a USB-A to Micro USB cable for convenient charging of the integrated battery.
- Wide SL Series Compatibility: Works with a broad range of slim MOTOTRBO portable radios, including the SL300, SL500, and TLK series.
Compatibility
| SL300 | SL500 | SL1600 | SL2600 |
| SL3500e | SL4000e | SL4010e | SL7550e |
| TLK100 | EVOLVE | SL1M | SL2M |
| SL500E | SL7550 | SL7550E | SL7580 |
| SL7580E | SL7590 | SL7590E | TLK100I |
| TLK110 |
Benefits
- Superior Audio Clarity: Windporting technology ensures the user's voice is heard over environmental noise, improving mission effectiveness.
- Maximized Operational Uptime: The integrated 22-hour battery life supports multi-shift usage, minimizing communication downtime.
- Enhanced Durability: The IP67 rating ensures the mic survives accidental drops and exposure to severe weather.
- Hands-Free Communication: Allows users to secure the radio on their belt while keeping the mic/speaker near their ear/mouth for efficient operation.
Warranty
1-year manufacturer's warranty
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
4.4 ★★★★★
Based on 2379 reviews
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Product Reviews
★★★★★ 5
Everything I expected.
Color: Black/Red
Not the watch I would want as an adult but fits my son perfectly. It’s durable, red and makes him happy. It should last him until he is old enough to get a job and make his own style and life choices.
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Reviewed in the United States on April 24, 2026
★★★★★ 1
Timex now poor quality
Color: Blue/Black
These watches used to last me years. The past two of these have died in under 6 months. Worthless junk. Will avoid Timex from now on.
A single drop of water and the button sends the watch into black screen and reset.
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Reviewed in the United States on May 25, 2026
★★★★★ 3
Good basic digital watch for women
Color: Black/Gray Stripe, Color: Black/Gray Stripe
Okay, so it's a great watch for women with small to medium wrists. Here's my pros and cons list:
Pros:
- Super easy to set. The package insert does NOT include instructions. This is my first Timex Expedition watch, so I had no experience going in. All you do is press Set and you use the Start and Stop buttons to move up and down, respectively, through the settings. Easy enough!
- I love the simplicity of the watch. It's simple and easy to read.
- It has the day of the week AND the month AND the date. I wanted to make sure any watch I get has these features.
- The watch band seems high quality. It is fabric/nylon, so it should hold up for several years (we'll see I guess).
- The Indiglo is pretty and works great in the dark!
Cons:
- I have to tighten the band as tight as possible in order to prevent the watch from wobbling around my wrist. It may be because my wrist is small and the watch itself is a bit heavy in comparison. I AM new to wearing a watch, so maybe it's just something I have to get used to.
- The display is perfect, but only when looking at it straight on (when facing you directly). If you were to glance over at your watch while you're typing on your computer, you can't see the time. It's too blurry. So the viewing angles are terrible. You can only see the time if you look directly at it. Again, this might be an issue with all digital watches, but I sort of expected more in today's technological world. This is probably my biggest con and biggest disappointment.
- The band holder is also nylon, so I had some trouble getting the extra band into the band holder. Now that I think more about it, I'm not sure what a better alternative would be for a nylon band... maybe if they glued the band holder on to the band, it wouldn't move around so much when trying to insert the band into the holder. Once you're inserted it, it seems to stay in place, though. So that's good. But I can see it loosening up and not working well in the future.
I've only had this watch since yesterday, so I haven't been able to test its waterproofness yet. I will update this review if I am unhappy with the waterproofness.
Overall, it's exactly what I was looking for: a basic digital watch that shows the day and date, with a band that is small enough to fit my female wrist. However, I would have liked it better if the price was $10-15 less than what I paid for it.
UPDATE: I've since moved on to a few other watches since this one. I have concluded that I do NOT like having a cloth/nylon watch band, and I prefer the rubber/plastic bands now. The nylon band takes way too long to dry after a shower, whereas the plastic bands don't need ANY drying time.
There are a lot of good plastic banded watches out there, and I've tried a few no-name brands on Amazon and have been happier with them than I was with this Timex. They are also not as heavy and floppy on my wrist.
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Reviewed in the United States on July 6, 2016
★★★★★ 5
Comfortable, stylish, and great for work or casual wear
Size: 36W x 32L, Color: Black
These DKNY slim fit chinos are a great balance between comfort and style. The stretch material makes a big difference — they move well throughout the day and don’t feel restrictive like some other slim fit pants.
The fit is modern and clean without being too tight, which makes them easy to wear for both work and more casual settings. They look polished enough for the office but still comfortable enough for everyday use.
The fabric feels good quality and has held up well so far. They don’t wrinkle too easily and keep their shape after wearing them for a full day. The 5-pocket design is also a nice touch, adding a bit of versatility compared to more traditional dress pants.
If I had to mention one minor thing, it would be that sizing can feel slightly snug depending on preference, so if you’re between sizes you might want to consider sizing up.
Overall, really solid pair of chinos — comfortable, versatile, and good quality for the price.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Excellent value for the quality and fit.
Size: 34W x 29L, Color: Khaki
Love these pants. So much that after wearing the light khaki pair a few time I bout a navy blue pair. I'm 5"5" and finding 29" inseam pants is a challenge, these fit perfectly and my flat butt isn't saggy baggy with the slim fit. They are NOT Skinny in the legs. The material is smooth as silk and I didn't need to iron them after washing. You would pay much more for anything close in a department store. The stretch is great, I can go without a belt confidant they won't fall down.
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Reviewed in the United States on May 20, 2026