| Composition | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Tuner | | has a digital |
| Cassette deck | no | |
| CD players | | yes |
| CD-player | yes | |
| MP3-players | | yes |
| MP3-player | yes | |
| DVD-player | yes | no |
| Blu-ray player | | no |
| Radio | yes | |
| Amplifier | yes | yes |
| Equalizer | no | yes |
| CD-changer | no | |
| Navigator | | no |
| GPS-receiver | no | |
| TV tuner | no | no |
| General characteristics | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Maximum power | | 4x50 W |
| Size | 1 din | 1 DIN |
| CD-changer interface is | | no |
| Color | silver | black |
| Number of channels | 4 | |
| Supported carriers and formats | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Formats | | CD Audio, MP3, WMA, AAC |
| Media | | CD-R, CD-RW |
| Memory card support | | SD, MMC |
| Output power | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Maximum | 45 W | |
| Equalizer | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Adjusting the tone | no | |
| Super-bass | no | |
| Display | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Display type | | monochrome |
| Display dimensions | | 192 x 48 pixels |
| Type | multicolor | |
| Sensory | yes | |
| Motorised | yes | |
| Turning | no | |
| Format | 16:9 | |
| Management | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Infrared remote | | yes |
| Joystick on the steering wheel | | it is possible to connect |
| Pause when speaking on the phone | | yes |
| Search for a folder/file | | yes |
| Auto plants | | yes |
| Display dimensions | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Display diagonal | 7'' | |
| Adjust backlight brightness | yes | |
| Tilt panel | no | |
| Interfaces | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Inputs | | USB |
| Audio input on the front panel | | yes |
| Outputs | | Subwoofer PreAmp |
| Bluetooth Support | | no |
| USB-port | no | |
| Front USB | no | |
| Gold-plated connectors | no | |
| Connecting the ISO standard | no | |
| Wi-Fi | no | |
| Bluetooth | no | |
| A2DP | no | |
| Supported carriers | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| CD-R | yes | |
| CD-RW | yes | |
| DVD R | yes | |
| DVD RW | yes | |
| Video CD | yes | |
| DVD-Video | yes | |
| Protection | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Detachable panel | no | yes |
| Security codes | no | yes |
| Damping suspension | no | |
| Tuner | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Support band | | FM, MW |
| Tuner with long reception | | yes |
| Number of preset FM/AM | | 18 / 6 |
| Formats | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| PAL | yes | |
| SECAM | yes | |
| NTSC | yes | |
| Additional information | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Adjusting the voice | | yes |
| The number of bit DAC | | 24 |
| The number of bands equalizer | | 5 |
| Number of preset equalizer settings | | 7 |
| ID3 tag support | | yes |
| CD-text | | yes |
| Tone compensation | | yes |
| Dimensions (WxHxD) | | 178x50x160 mm |
| Inputs | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Number of audio inputs | 2 | |
| Optical audio input | no | |
| Audio input on the front panel | no | |
| Composite video input | no | |
| Component Video Input | no | |
| To connect the navigation system | no | |
| Outputs | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Audio output | yes | |
| Audio output stereo | no | |
| Audio output PreAmp front | no | |
| Audio output PreAmp rear | no | |
| Audio output PreAmp subwoofer | no | |
| Optical audio output | no | |
| Digital coaxial audio output | no | |
| Composite video | no | |
| S-Video | no | |
| On headphones | no | |
| Component video output | no | |
| Functionality | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Infrared remote | yes | |
| Joystick on the steering wheel | no | |
| DSSA | no | |
| Pause when speaking on the phone | no | |
| Audio cruise control | no | |
| Memory disk names | no | |
| CD-text | no | |
| Loudness | no | |
| Disabling Voice | no | |
| Clock | no | |
| Search folders / files | no | |
| Support rear view camera | no | |
| Android operating system | no | |
| The one-bit DAC architecture | no | |
| Backlit keys | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Backlit | yes | |
| Multicolor | no | |
| Adjust backlight brightness | no | |
| Type brightness control | automatic | |
| Support band | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| FM | yes | |
| LW | no | |
| SW | no | |
| MW | yes | |
| VHF | no | |
| Digital tuner | yes | |
| HD Radio | no | |
| Auto plants | no | |
| Number of preset radio | 24 | |
| Number of preset FM | 18 | |
| Number of preset AM | 6 | |
| Tuner with a long reception | yes | |
| Stereo / Mono | no | |
| Recording function | no | |
| RDS | no | |
| RDS/EON | no | |
| RDS/PTY | no | |
| Changer | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Control CD-changer | yes | |
| Interface type CD-Changer | CeNET | |
| Dimensions | Mystery MMTD-9300S | Pioneer DEH-7250SD |
| Width | 178 mm | |
| Height | 50 mm | |
| Depth | 178 mm | |
