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Input:
Question: Is there a way to lock the unit once the radio station is selected so the tuning buttons won't work if they are touched accidentally?
Document: This a a great little radio for the price. The unit is quite compact. The tuning is excellent with good sound and great sensitivity and precision. Can set numerous presets. Has a lock feature to prevent inadvertant changes in the station or volume --  or accidently turning the radio on or off. The only thing that would make it better would be a rechargeable lithium battery -- but not a this price.
The volume buttons are located on the face of unit along with buttons for Dynamic Bass Boost (DBB) and adjustable tuning step. I didn't like the comfort of the earbuds that came with the radio and replaced them with Sony earbuds. When turned on: the display shows the station, band, and signal strength. The radio also has a 90-minute turn off timer (that can be turned on and off) which shows on the display. When turned off: the digital display shows a digital clock.
It has earbuds and a 2ft long cord which serves as the FM antenna. I would prefer headphones, but this is not possible due to its small size. The radio fits very easily into a shirt pocket. For best FM reception, I recommend that you let the earbud cord hang all the way out, & not fold it up in a pocket. This radio has PLL tuning, which stands for Phase Lock Linear. This tuning is found on much more expensive radios.
After having used Grundig AM/FM radios for years I finally figured it was time for pll digital tuning. I have a long commute and like to listen to a certain radio program on the way. Luckily this is broadcast on three stations across my commute so as one station fades out, I can easily tune to the next. The digital tuning and push button memory makes this a snap as I merely need to push one button and it locks onto the station instead of manually tuning a dial.
I was looking for a small radio with good AM and FM reception for use during exercise at the gym. This unit does the trick. I can't imagine it being any smaller and still have decent AM reception. I've also found the mono lock feature to be good to prevent signal wandering as I move around the indoor gymnasium. The only negative I found was the fit of the included earphones. However, I had another set from another unit that plugged in and work great with it.
I had been using a Sony sport style am/fm at work where it only took a few days to break the arm band mount. I then continuously broke headphone cords as the unit was designed with the jack on the side, causing the cord to pinch over itself on the way out of my pocket. I searched fruitlessly until I found the Sangean Dt-120. It's narrow, small, flat, and most importantly has the headphone jack on top.
With both radios, I had problems with the earphone connectors as they seemed to be fairly frail being bumped about. The Radio Shack one busted too, but it took a lot longer time.What I consider to be the units  Achilles' heel is their lockout feature, and had operational problems with both units after using it. I just think the switch is not up to snuff and breaks very quickly. With the prior unit, I had to move the switch back and forth until the desired buttons decided to work.
So it's really a 3x5 matrix; select FM1, FM2, or AM with one button (which you have to cycle through), then directly to the memorized station with a button on top.The knob on the side is an up/down jog wheel. It is used to go up or down in frequency, hours, minutes, or tuning interval. I just don't find this appealing. I'd rather just have an additional two buttons.
I listen to this powerful little radio while mowing my lawn. I picked up some noise-canceling earbuds so I can hear the radio over the sound of the mower/edger. An FM distant radio station I prefer comes in very well with the Sangean even though reception with standard radios is sketchy at best. Once the station and volume are selected, you can &#34;lock&#34; the setting so that it cannot be changed while the radio is in your pocket.
This Sangean pocket radio, the DT-120, is very popular and has very good tuning and preset capabilities. I especially liked the easy availability of the set of 5 push button presets located on the top of the radio, just like on many car radios. I returned it because its width is way too small for my taste (similar to, but slightly wider than, the popular Sony SRF-M97 am/fm radio).
Answer: Yes. No buttons respond when the lock is slid over. Located above the battery compartment.