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©Copyright LOTRONIC 2021
TOP PANEL CONTROLS
1. LED ON/OFF
2. Short press to play or pause the music.
3. Short press to go to the next song
4.
5. Press the EQ button to select a music mood
6. Volume -
7. Short press to go to the previous song
8. MODE Button: Press to select the desired audio source among
Bluetooth, USB, TF and AUX if several audio sources are
connected at the same time.
REAR PANEL CONNECTORS
ON/OFF
AUX
TF
USB
MIC
5V
𝌃𝌃
0.5A
ON/OFF switch
AUX: 3.5mm jack connector for an external audio source
TF: Input slot for a micro-SD card
USB: Input slot for a USB stick
5V𝌃 0.5A connector to charge the built-in battery
MIC: Plug in a wired microphone. This will not mute the music from the other input sources
CONNECTING A MICROPHONE
Connect the microphone to the MIC IN socket and switch it on.
Note: The music will continue to play when a microphone is connected.
BLUETOOTH OPERATION
1. Keep your mobile phone within a distance of max. 10m from the box.
2. Push the ON/OFF button to ON to switch the unit on.
3. The unit is automatically in Bluetooth mode
4. Start searching for Bluetooth devices on your mobile phone.
5. Select “ALFA-2600” or "LEO-250" in the list of found devices
USB/TF OPERATION
When you plug in a USB device into th USB input slot, the unit will play automatically the music on your USB
device.
AUX OPERATION
Plug in an AUX device and the unit will play automatically the music of your device.
Please note: If several input sources are connected at the same time, press the MODE button until
the desired music source is playing.
SPECIFICATIONS
Model name
ALFA-2600
LEO-250
Woofers
2 x 4”/10cm
2 x 3"/8cm
Power
200W
100W
Freq. range
100Hz – 18kHz
100Hz – 18kHz
Battery
3.7V𝌃 2400mAh
3.7V𝌃 2400mAh
BT freq. range
2402-2480MHz
2402-2480MHz
Max. RF value for Bluetooth
3.07dBm
2.08dBm
DC input
5V𝌃 0.5A
5V𝌃 0.5A
Dimensions
18 x 18 x 40cm
16.2 x 16 x 28.1cm
Weight
2.28kg
1.7kg
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VOL-
VOL+