The dimensions of the US morpher : 2 6/16 inches wide; 4 inches in length; 1 4/16 inches deep, while the Japanese morpher is a little larger at 2 9/16 inches wide; 4 6/16 inches in length; 1 5/16 inches deep.
The US version only has 2 Modes: Change and Judge, while the Japanese version has 3 Modes: Change, Phone and Judge.
The On/Off switch located on the side of the unit is silent when turned on (US version). In the Japanese version, the lights flash once and 3 tones are heard when it's turned on. The same 3 tones that can be heard in the Dekaranger TV series when someone turns on their morpher, or "license" as it's referred to.
Both versions have a Mode Selector that you slide up or down until the arrow on the Selector lines up with either CHANGE or JUDGE on the US version, or CHANGE, PHONE, or JUDGE on the Japanese version. Then, you press the button on top of the morpher and the cover flips open. The inside appears different depending on which Mode you're in. The Mode Selector holds onto tabs on the upper top portion of the inside of the morpher.
When you are in CHANGE MODE in the US version, the Selector holds onto a tab. This allows only the cover to flip open and you see the Doggie Cruger-in-Police Shield logo on the top half and a cellphone keypad on the bottom half.
When you slide the Selector to JUDGE MODE, the selector isn't holding onto any tabs, so when the cover flips down and opens, the top half flips down with it at the same time to reveal the Judgement Mode setup. The top half shows the red "X" indicating guilt and the bottom half shows the green "O" indicating innocence.
Change Mode (US version) - slide the Mode Selector to Change, press the button on the top of the morpher and the cover flips open. A "morphing sound" is heard and lights flash. Is that supposed to be the sound of sirens too? It might be. Hard to tell.
With the cover open, if you push the button again, you hear a series of sounds repeated 8 times; the lights flash 8 times also. [Left-Right (pause); Right-Left (pause); etc.] This is a different sound than in the Japanese version, where you hear the police siren wailing.
The top half of the inside depicts the Doggie Cruger silhouette inside the Police Shield logo. The lower half has a telephone keypad with raised buttons that don't work, they're just there for show.
Phone Mode (only found in Japanese version) - When you push the button on top of the morpher, the inside of the phone looks different, because a different tab is held in place by the Slider. Pushing the top button causes the phone to ring 4 times. Both lights strobe/pulse in synch with the ringing of the phone. The inside cover has a laminated sticker that looks like a cell phone, with 4 bars of increasing height depicting signal strength on the upper left side; a battery indicator showing full charge. The letters SPD are in a grey circle and around the circle are the words Record, Data, Phone and Search. The bottom portion looks like the keypad found on the US version, but it's a laminated sticker sheet, whereas the US version is raised buttons that don't do anything.
With the cover still open, if you push the top button again, you hear a series of electronic sounding sounds that continues for 8 cycles. Lights flash from Left to Right, then pauses; Right to Left, then pauses, etc. for 8 cycles. The electronic sounds you hear are the same sounds the US version plays when the cover is open in CHANGE MODE.
Judgement Mode (US version) - You hear the words, "Judgement time!" along with the 2-note "guilty" theme. Lights flash and then stop once the suspect has been declared guilty. The top half shows the red "X" and the bottom half shows the green "O". The US version is lacking the Innocent verdict, assuming that all suspects are guilty.
Judgement Mode (Japanese version) - a crashing sound is hear, followed by the words, "Judgement time!" and then the sound of a clock ticking continuously. Both lights flash together in unison. Push the button again to deliver either a guilty verdict (2-note sound of guilt), or a verdict of innocence (clarion call.) The verdict is random and will be about 50/50 for guilt/innocence. If you don't push the top button to render a verdict, the ticking sound will continue for 28 seconds and then stop. If you push the top button after the ticking stops, a verdict will still be rendered. Pushing the top button again with the cover open initiates the Judgement Mode routine again.
The Japanese version comes with a stickers sheet with 5 stickers. One for each ranger. Each ranger is shown and their name and the weapons they use. The sticker is in the shape of the bottom half of the picture phone, so you can peel it off and be in conversation with your favorite ranger.
The US version comes with something they call a holster, but it's really just a small (1 1/2 inch by 2 1/2 inch) plastic clip that attaches to the morpher and allows it to clip to your belt.
Interestingly, although smaller in size than the Japanese version, the US version comes packaged in a larger box. Either it's to make you think you're getting your money's worth by buying something in a large box, or it's to prevent shoplifting by making a large box more difficult to conceal. Once you get it home and rip open the box, you discover that most of what's inside the box is the plastic holder that keeps the morpher in place.
The sound in the US version is TERRIBLE! It's so bad, I thought the problem was that the batteries were almost dead, but when I switched batteries with the Japanese morpher and the problem still stayed, it ruled out the batteries and placed the blame squarely on the morpher itself.
It's hard to make out the sounds you are hearing, because the sound volume is not only very low, but garbled. I can't believe that Quality Control at Bandai USA would allow this to pass inspection. The sound in the Japanese morpher is at least 3 times as loud and as crisp and as clear as can be.
The whole thing about this is not that the Japanese version is the greatest thing ever, it's that the US version is a total piece of crap. Save yourself some money and forget about it. It's not worth getting in my opinion. The Japanese SPD license is OK, but the real treat is the Master License for Doggie Krueger, which came out a few months after the SPD license. I would highly recommend the Master License to any fan of the sentai series.