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  • VEC TRX-20 3.5MM Direct Connect Telephone Record Device (ADAPTER ONLY)
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VEC TRX-20 3.5MM Direct Connect Telephone Record Device (ADAPTER ONLY)

by KJB
| 19 answered questions

List Price: $24.30
Price: $19.93 & FREE Shipping on orders over $35. Details
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  • ***THIS IS A TRX20 3.5M ADAPTER****
14 new from $19.93 1 used from $25.00

Frequently Bought Together

VEC TRX-20 3.5MM Direct Connect Telephone Record Device (ADAPTER ONLY) + Sony Digital Flash Voice Recorder (ICD-PX312)
Price for both: $159.88

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Technical Details

  • Brand Name: KJB
  • Model: TRX20 3.5M

Product Details

  • Shipping Weight: 2 pounds (View shipping rates and policies)
  • ASIN: B000KL0XA6
  • Item model number: TRX20 3.5M
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (64 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: July 24, 2006

Product Description

TRX-20-35B Telephone Recording Jack (3.5mm) TRX20 These WILL NOT WORK with CORDLESS PHONES. The TRX-20-35B Telephone Record Unit (specifically for 3.5mm mic inputs) adapts a recorder to both single or multi-line telephones. Simple and easy to use, this unit connects quickly between your telephone and handset providing crystal clear audio recordings. (The audio quality will be as good as the audio coming through your handset!). A modular connector simply plugs between handset cord and the telephone, and 3.5mm jack plugs into your recorder. When used with a multi-line phone, it will record whichever line you are talking on. 3.5mm microphone input plug on the tape recorder or digital recorder.

Customer Questions & Answers

Customer Reviews

If you play in low volume its not that audible.
mohitdl
You do have to pick up the receiver in order to get a good recording of both sides of the conversation.
Douglas J. Waite
Works great with my office phone or home phone.
Luis T.

Most Helpful Customer Reviews

29 of 31 people found the following review helpful By Alan J. Eckstrand on June 12, 2007
Verified Purchase
This interface plugs into the same jack as the headset and not the main line. At first this was confusing. However, once I figured that out all went well. The sound quality was as good as the phone receiver and it was easy to use with my laptop computer. For the cost, this was an unbeatable solution to the problem of recording meetings in an efficent and easy way.
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17 of 17 people found the following review helpful By mattyd on January 8, 2010
Verified Purchase
I had a need to record interviews taking place via phone for some academic research that I'm conducting. This is an excellent solution, and very easy to use. I work at a university, on the university's digital phone system. Because this plugs in at the handset, it can be used, I would presume, on any network, digital or analog. It can't be used with a cell phone that I can see, but for traditional phones, you could not beat this item.

I am currently recording conversations on an Olympus DS-30 Digital Voice Recorder Olympus DS-30 Digital Voice Recorder. Of course, consult local and state laws regarding required disclosure the legality of recording phone conversations.
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5 of 6 people found the following review helpful By mohitdl on October 5, 2011
Verified Purchase
I received this an hour back and tested by recording 3 calls (2 with a Sony Digital Voice Recorder, and 1 on my laptop through windows sound recorder). The recording is absolutely clear and crisp and it does the job well. The device is very small (smaller than it looks in the picture shown).

The reason I gave 4 stars instead of 5 is while recording playback, when Speaker pause I hear a background hissing sound. This hissing becomes very dim when someone is talking but it becomes louder during pauses. If you play in low volume its not that audible. Overall a good product.
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5 of 6 people found the following review helpful By Catherine Morgan on August 29, 2010
Verified Purchase
We liked our first coupler so much we ordered two more! Again, it took less than a week to receive the products. We're using them to record audio in Microsoft Office Live Meeting from Phillips phones and via Plantronics wireless headsets into Dell computers. We're also using them to record into Camtasia Studio 2.0 (the free version). They work fine out of the box. The person with the coupler on their phone is louder than others, but all quality is very acceptable (just like via the telephone only). We are working on the settings within the computer to lower the "coupler person's" voice highs and lows. The device also works fine when recording into Audacity freeware. I like them, too, because they are easy to hook-up. Easy for even a "non-techie" person like me to use.
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2 of 2 people found the following review helpful By Tom Mugleston on April 22, 2013
Verified Purchase
I use a NEC D-term Series E phone with a Plantronics wireless headset. I tried recording on several digital recorders. The volume coming in is loud and clear. However, my voice calling out is so quiet that I can hardly tell it is there. I tried attaching the adapter at several points in the system and get the same volume issues. Maybe it works with a different phone. Maybe it's the adapter. Hard to tell at this point.

Update: The adapter works fine on our NEC D-term phones without the Plantronics headset. I did some fiddling with my headset to increase the microphone volume and viola, it now works. Also, I was having some trouble getting the audio to work through the microphone jack on my laptop. The adapter has a 3.5mm mono plug and I had to pull the plug out slightly to get a connection. I have ordered a 3.5mm mono female to 3.5mm stereo male adapter. We'll see if this fixes things. Stars went from 2 to 4 now that I have the volume working right.
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2 of 2 people found the following review helpful By MR. B on November 26, 2010
Verified Purchase
Did the job it's suppose to while other cheaper ones from ebay failed.

Was worth the extra I think mostly because if fit the rj11 jacks better.
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1 of 1 people found the following review helpful By Idiot Suvant on October 10, 2012
Verified Purchase
I combined this product with an Olympus WS-802 and the combination makes for a very easy to use system. I leave the parts continuously connected to my phone. When I need to remove the recorder for playback (for example in the car), I just remove the Olympus, and leave the coupler connected to the phone. Great system, easy to use. When I make a call, I have lots of time to turn on the Olympus, and then start recording just before I place the call. When I receive a call, it takes me about 3 seconds to turn the Olympus on, and start recording, and then I pick up the phone, as to capture the entire conversation.

The voice quality of the setup is pretty good, it captures only the left ear channel from the phone. I'm guessing this is because of the phone, since normally, the handset is place only on one ear so there's no need to carry two signals (left and right).

The phone I use is a Polycom 501 IP phone. But it doesn't really matter what phone, as long as the chord to your handset (that connects to the base) has the same kind of connector as most phones have. Whether IP phone or regular phone, the link between the base and the handset is analog I think... it doesn't make sense to put a bunch of sophisticated electronics (digital technology) into the handset, so I think all phones use analog signal from the base to the handset.
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1 of 1 people found the following review helpful By Wayne W. Randall on July 25, 2012
Verified Purchase
Spent more time figuring out the controls for the recorder I use with it. Inexpensive and no brainier to use. Want something simple and easy to use well this fits the bill.
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