1.Ultra-low distortion amplifying circuit
2.Digital karaoke, treble and bass independent adjustment
3. Built-in MP3 encoding supporting U disk
4.Unique acoustic appearance design
5.Professional treble and bass gain controlling circuit
6. Built-in battery for outdoor activities
7.Built-in professional wireless microphone system
8.Professional high-effective loud-speaking unit
9.Compatible to DVD/VCD/PC and other sound sources
10.Suitable for adaptor and charging
11.Intelligent power switch charging circuit
Panel/rear plate/MP3 function and operation
MIC. VOL (microphone volume): it is used to adjust the volume of microphone
MIC. TREBLE (microphone treble): it is used to adjust the gain of microphone treble.
MIC. BASS (microphone bass): it is used to adjust the gain of microphone bass.
ECHO (microphone echo): it is used to adjust the echo depth of microphone.
DELAY (microphone delay): it is used to adjust the effect of microphone echo delay.
MIC1 MIC2 (microphone 1 and microphone 2): they are used to connect the plug interface of the wire microphone.
GT 1, GT2 (guitar 1 and guitar 2): they are used to connect the interface of guitar audio wire.
GUITAR. VOLUME (guitar volume): it is used to adjust the volume after the guitar input function is amplified.
DC FUSE (DC fuse): it is used for the power to supply the fuse of the whole machine with the protective tube of F10A/250V.
POWER (power switch): the switch break-make power is applicable to the power control of sound amplifier of the whole machine instead of that of charging power. When the adapter is connected, the battery charging is not controlled by the switch.
DC15V IN (15V DC power input): the interface of external power adaptor; please use the original adapter.
CHARGING (indicator lamp of battery power): after the power adaptor is connected, the indicator lamp will be on and battery starts to be charged
FULL (indicator lamp of full charge): when adapter is used to charge the battery, it means full charge when the indicator lamp is on.
WIRELESS MIC ANT (built-in microphone antenna): when you use wireless microphone, please make the antenna vertically upward, so as to reach a better receiving effect.
12V BATTERY IN (external 12V battery interface): please carefully check the anode and cathode when connecting and the applied connection line can not be smaller than 0.75 square meters. Attention shall also be paid to the firmness when connecting it.
LINE IN (external audio interface): it is used to connect the compatible audio equipment such as DVC and computer.
Display screen of MP3 encoding player: it is used to display the playing track, playing time or the receiving rate under receiving status.
USD interface (U disk interface): when MP3 function of U disk is needed, insert the U disk with MP3 songs to the interface.
SD/MMC CARD (interface of SD card and MMC card): insert SD card or MCC card with copied MP3 songs to the interface.
Key: pressing the key to switch pause status under playing status or vice versa.
Stop key: pressing the key to stop playing under playing status; you are suggested to stop the key and change U disk when you want to change U disk.
MP3/LINE-MODE (audio input switch): it is used to switch to use the external audio or built-in MP3 encoding sound as the signal source of audio amplifier.
VOL-key: select the previous song for playing: the volume will be reduced by pressing the key for longer than 3seconds.
VOL+ key: select the next song for playing: the volume will be increased by pressing the key for longer than 3 seconds.
REPEAT (repetitive playing): press the key for repeating of single song or total songs.
Instruction of U disk MP3 encoding playing
When you need to use the built-in MP3 encoding function, please format your USD disk (U disk for short below) as FA-T32 format in computer first and then copy the file in MP3 format in U disk.Therefore, the song which is copied to U disk first will be played in priority or vice versa.
Operation of FM receiving function
SCAN key-pressing: press the key and the radio will scan the local radio station and save it automatically.
CH+ key-pressing: press the key and the radio will read the saved radio station and select the next one in ascending order;
CH- key-pressing: press the key and the radio will read the saved radio station and select the previous one in descending order;
Note: MODE key is used to switch radio status in order to use radio key-pressing function; if the receiving frequency needs inputting manually, press the numbers on remote control directly to input the frequency of radio station.