maxpower MPD523 Speaker

INTRODUCTION
OPERATION MANUAL
- Make sure to read the following instructions to enjoy your MPD523 Speaker
- It will take 5 hours to fully charge MPD523.
- Playtime will be around 6-7 hours with lights off.
- With the dancing lights on the whole time, playtime will be 4-5 hours.
- The speaker should be situated away from heat sources such as radiators, and not exposed to moist air or water.
- Place the unit on a stable surface, to prevent it from being fall.
- The speaker should be connected to a power supply only of the type described in the operating instructions.
- The user should not attempt to repair the speaker if you are not professional.
- Disconnect the power cable from the outlet & switch off before cleaning the unit. Only use a soft cloth, no harsh abrasives or chemicals to clean, as it will damage the surface finishing.
- The power cable of the speaker should be unplugged from the outlet and the Power switch should be off when left unused for a long time.
ACCESSORIES
- Speaker.…………………….. 1 PC
- User Manual.…………………… 1 PC
- Charging kit………………… 1 PC
- REMOTE CONTROL………….. 1 PC

OPERATIONS

- ECHO: When connecting a microphone under music modes, click this button and then twist the “MIC VOL” konb to control the Echo. Turn left to down and turn right to increase the Echo effect.
- M. TREBLE: When connecting a microphone under music modes, click this button and then twist the “MIC VOL” konb to control the microphone’s treble effect. Turn left to down and turn right to increase the treble effect.
- M.BASS: When connecting a microphone under music modes, click this button and then twist the “MIC VOL” konb to control the microphone’s bass effect. Turn left to down and turn right to increase the bass effect.
- M.LED: Click this button to change different light effects under music modes.
- MIC P: When connecting a microphone under music modes. Click this button to activate the MIC PRIORITY function. When you speak out loud via a microphone, the playing music stops and the speaker would play the microphone voice only(Please ensure you speak out loud enough). When stop speaking, the playing music resumes. Click again this button to quit the MIC PRIORITY function.
- GT: When connecting a guitar, click this button and then twist the “MIC VOL” konb to control the GT’s volume. Turn left to down and turn right to increase the GT volume.

- MODE BT OFF: Click this button to switch to different Bluetooth/AUX/FM/USB/SD Card modes.
- TREBLE: In music modes, click this button and then twist the “VOLUME” knob to control the treble effect. Turn left to down and turn right to increase the treble effect.
- ASS: In music modes, click this button and then twist the “VOLUME” knob to control the bass effect. Turn left to down and turn right to increase the bass effect.
Click this button to play the previous song or channel.
TWS: Play/Pause music—short pressing for station automatic searching under FM mode. When you have 2 speakers, longly press on one of the speakers to activate the TWS function under Bluetooth mode.
Click this button to play the next song or channel.
HOW TO CONNECT TO BT
- How to connect to BT:
- When you turn on the speaker, the front display will say OPEN which means the speaker is ready to connect to any BT device.
- Please go on your smart device or cell phone and search for the BT connections.
- You should see MPD523-RETROBOOM, please select that and you should be connected.
- Short pressing the
button to play the last music. - Short pressing the
button to play the next music. - Short pressing the
I/TWS button to play/pause music. - Twist the “VOLUME” knob to control volume up(Turn right) and down (Turn left).

- HOW TO PAIR TWO SPEAKERS VIA TWS FUNCTION
- How to pair two speakers with the TWS function:
- Please turn on both speakers and make sure both speakers are within 2 feet.
- On one of the speakers, press
the TWS button for 3 seconds. When you let it go, within 3 seconds you should hear an indication sound which means both the speakers are paired via TWS. - Then go to your smart device or cell phone search for BT and connect any one of the speakers.
- Once you are connected to BT, you can hear the music from both the speakers.
- If you want to disconnect from the TWS function, press
TWS for 3 seconds and it should get disconnected.
- HOW TO USE THE RADIO FUNCTION
- Radio function:
- Shortly pressing the MODE BT OFF button and switch to Radio mode.
- Short pressing the
TWS button for station automatic searching. (Automatic searching will be finished in 2-5 minutes.) - Short pressing the
button to play the last station. - Short pressing the
button to play the next station. - Twist the volume knob to control the volume up(Turn right) and down (Turn left).

SPECIFICATIONS

REMOTE CONTROL

REMOTE CONTROL OPERATION:
If the remote control interferes with other electronic devices, the remote operation can be affected. Do not simultaneously press buttons on the unit and the remote control, Avoid using two remote controls at the same time as this will cause a malfunction.
Use only” AAA “size batteries. Do not mix old batteries with new ones, If the batteries leak, clean them thoroughly before replacing them with new ones, Do not short two terminals of the batteries. Dispose of old batteries in a suitable place.
Remote Control
Power on/off.- MODE key: Use this button to toggle between BT/AUX mode/Radio mode/USB/SD Card mode.
- STOP: press to stop.
- MUTE: MUTE mode.
Press to pause/play; Shortly pressing to auto-search FM channels under FM mode.
In Mp3 mode short press to play the previous track.
In MP3 mode, short press to play the next track.- VOL- key: This button is to reduce the volume.
- VOL+ key: This button is to increase the volume.
- REPE: Press to repeat the song or press to repeat the entire playlist.
- EQ helps you to choose between Jazz, Rock, Bass, Normal, and Class mode.
- 0-9″ numbers:
- In radio mode, it refers to the FM channel number.
- In MP3 mode, it refers to the track number.
NARM REMINDER
Notes:
- Please read this manual carefully before use and keep it properly.
- For the first use, please fully charge the product.
- Pls, use a certificated adapter that has passed national safety certification.
- If you do not use the product for a long time, be sure to charge it once within a month at least to maintain its performance.
- Do not use this product in an extremely cold or hot environment. Use in a correct environment such as a temperature range of 5 C -35 C. If used beyond the above range, the product may stop automatically to protect the internal circuit.
- When charging it in a high-temperature environment, the product may automatically stop charging to protect the battery.
- Storage environment temperature: -5 ~ 35 C RH < 70% (recommended 25 С+5).
Important safety instructions
- Do not disassemble or repair this speaker personally, otherwise it may cause product damage or personal injury.
- Do not use it in dusty, humid, dry, and high-temperature environments.
- Do not place this product near a heat source, or place with direct sunlight, a lot of dust, or mechanical vibration.
- In order to reduce the risk of fire, please do not cover this product with newspapers, tablecloths, curtains, etc., during use.
- If the product has a waterproof feature, please do not exceed the nominal parameter range when using it.
- When the product is damaged (such as the power cord or plug is damaged, liquid enters or objects fall into the device, unable to operate normally or falls), it must be repaired.
- When the product is fully charged, do not connect it to the charger for further long time. (The indicator in the back should be turned darker or turned off when the product is fully charged.)
- The maximum ambient temperature should not exceed 40°C.
FCC Statement
Federal Communications Commission (FCC) Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference
- this device must accept any interference received, including iterference that may cause undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, according to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used per the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment to an outlet on a circuit different from that to which the receiver is connected
- Consult the dealer or an experienced radio/TV technician for help.
Warning: Changes or modifications made to this device not expressly approved by Universal Electronics, Inc. may void the FCC authorization to operate this device.
Note: The manufacturer is not responsible for any radio or TV interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to operate the equipment.
RF exposure statement:
This device complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. The device is installed and operated without restriction.
FCCID: 2AXUUMPD523
Documents / Resources
![]() | MPD523 Speaker |
References
- User Manualmanual.tools

