Editorial Review:Product Description:Keep track of your meetings, lectures and conferences without getting writer's cramp with Sony's M-450 microcassette recorder. It comes complete with 1 microcassette tape and 2 AA batteries so you can start using it the day you take it home. 2-speed recording lets you double your recording time for longer meetings. And the M-450 uses microcassettes so it's small enough to hide away anywhere.
Amazon.com Product Description:Sony's M-450 microcassette recorder is a long-lasting voice recorder. With the required two AA batteries the recorder will last an impressive thirty hours. The Clear Voice recording system will make voices sound as crisp and clean as possible, both during record and playback. The Sony-Matic automatic recording level control is another feature that will improve the recording process; this feature ensures the correct recording level.
During playback, editors and listeners will enjoy the cue and review system. This system uses a slide control, and provides sound during fast forward and rewind, allowing for quick searches. The two-speed record/playback offers an option of recording the microcassette at either normal speed or half-normal speed. This feature ultimately gives you an extended recording opportunity.
The recorder's LED light provides up-to-minute battery life information. To help save battery and mechanical wear, the M-450 has automatic shut-off. The recorder runs on either 2 AA batteries or an optional AC adaptor. Included in the package are a microcassette and two AA batteries, making this recorder ready to use, right out of the box.
What's in the Box Sony M-450 microcassette recorder, cassette, 2 AA batteries, ninety day warranty and user's manual.
Accessories:
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Customer Reviews
Average Rating:
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Works well for me!
I've been using the Sony M450 unit every day for several months -- ever since my previous Sony M430 finally gave up the ghost after 5 years of daily use. It works well, and gets the job done. Another reviewer complained of the lack of an "on/off" switch. This is not a problem for me, as the unit is "off" unless you turn it on. I recommend it, and would buy another one (if I needed another one!). A very good value for the money.
Rating: 
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Order incomplete
This product seems to work ok, but seller didn't include part of package that was advertised.
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Ideal for Dictation
I found this Sony recorder perfect for making quick dictation notes, so much so that I constantly use it and may well purchase a second one as a backup. It is ergonomically well designed, the appropriate control buttons easily accessed, and doesn't attempt to look fancy like the Olympus models. It has a clear voice replay, with a very well designed Cue and Review Control (rather oval shaped, so you don't accidentally hit any wrong buttons), the record button is prominently red and the microphone silver, so it's hard to make any mistakes in recording or accidentally erasing information. Similarly, the Pause control reveals a red spot when activated, so you don't have to guess if the machine is actually on pause or not. An unexpected feature is the stereo sound when you plug in a pair of earphones: unlike your standard tape recorder that will only provide sound through one phone in a headset, this recorder feeds sounds to both sides of a headphone. As the manufacturer description indicates, it has two speeds to extend cassette length. If you want a personal dictation recorder that is as small as can be expected, is inconspicuous and literally compact, then this is a wise and economical purchase.
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I have no idea what your talking about
Your recorder must have a fault mine doesn't make any sound at all and doesn't use any battery power when not listening or recording. That's what the red light is for.
Advantages:
One touch recording
Speed of tape switch
Clear voice thingy
Looks pretty cool
Disadvantages:
No voice activation
Rating: 
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No on/off switch?
I would not buy this product again. My unit emits a constant electronic hiss even when all controls are in the neutral position. As far as I can tell, there is--incredibly--no switch that disconnects battery power when the unit is not in use.
