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| 1. Remote control | 
| 2. Frequency pointer display table (ma-897) built-in speaker (ma-897lb) | 
| 3. Four electronic key control | 
| 4. FM receiving | 
| 5. Audio digital display | 
| 6. Two microphone input | 
| 7. Microphone volume control | 
| 8. Power switch control | 
| 9. Treble/bass/volume control | 
| 10. Usb/SD/MMC auto-read | 
| 11. Power supply: DC12V/AC220V | 
| 12. Two channel power output: 40W+40W |