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720W Hi-Fi Entertainment System with Bluetooth® Connectivity

  • CJ45

  • Black

Key Features

  • Multiple Inputs
  • Karaoke Creator
  • Bluetooth Connectivity
  • Shared Jukebox
Multiple Inputs

Multiple Inputs

Great tunes can come from a variety of sources, so this speaker system comes equipped with a standard analog stereo auxiliary input as well as two USB ports, ready to accept an external sources to conveniently play digital music.

Karaoke Creator

Karaoke Creator

Get ready to croon along with any tune: This feature suppresses the vocal frequencies of a song, making any track ready to play behind a new lead singer! It can even change the key of the song to better suit the voice of the singer*.

*Microphone not included.

Bluetooth Connectivity

Bluetooth Connectivity

Wirelessly stream music directly from your Smartphone or other compatible device for a seamless listening experience.

Shared Jukebox

Shared Jukebox

Up to three different people can connect their devices to the speaker system via Bluetooth and build a playlist on the fly, without ever interrupting the party. Pick any available song, then just add it to the queue.

Auto DJ

Multiple Inputs

Why should the guests have all the fun? When it’s time for the DJ to hit the dance floor—or just take a break—this fully automated function puts the party on “cruise control” and lets the system take over.

Total Output Power 720W
Front Speaker Output Power 240W x 2
Subwoofer Output Power 240W
Bluetooth Remote App Support (iOS/Android) Yes
USB Direct Recording Yes
Karaoke Creator Yes
Multipoint Yes
CD Yes
Tuner Yes
AUX1 Yes
USB1 Yes
USB2 Yes
Portable In Yes
Bluetooth Yes
Front Speaker System 2 Way 2 Speaker
Front Speaker Tweeter Unit 1.57"
Front Woofer Unit 6.5"
Front Subwoofer System 1 Way 1 Speaker
Front Subwoofer Unit 7"
USB 1 Yes
USB 2 Yes
Portable In Yes
AUX In (L/R) 1 (Rear)
Speaker Out System Jack
FM Radio Antenna Yes
Mic Jack Yes (1)
EQ User EQ, Standard, Pop, Classic, Rock, Jazz, Bass Blast, Football
Auto DJ Yes
Multi Jukebox Yes
Type PLL
Band FM/AM
FM Tuning Range (50kHz / 100kHz) 87.5 ~ 108.0 MHz
Memory/Erase Yes
Clock/Time/Sleep/Set Yes
Number of Discs 1
Loading Type Tray
Playable Disc Audio CD, MP3, WMA CD, CD-R, CD-RW
Playable File Format MP3, WMA
Power Consumption 80W
Standby Less than 0.5W
Remote Control Yes
Batteries AAA
FM Antenna Yes
Size (W x H x D) -
Main Speaker 13.8" x 6.4" x 9.9"
Front Speaker x 2 (WxHxD) 10.5" x 12.4" x 9.2"
Front Subwoofer 10.5" x 12.4" x 9.2"
Shipping Size (WxHxD) 42.6" x 17.2" x 12.7"
Shipping Weight 37.5 lbs
Limited Warranty 1 Year Parts and Labor
UPC 719192610934

What People Are Saying

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We're here to support you with our product.

View CJ45 Product Support

Contact us for any support inquiries.


Ask your questions. Share your answers.
Please first review the detailed product information and help guides in the Product Support section for this product prior to posting a question.

How to pair this device with my playstion 4 

Asked by: Ryan2635
This would be best to pair with a compatible TV. For the proper assistance please reach out to our support team via Twitter @LGUSSupport or Facebook ^CP
Answered by: ChrisPSM
Date published: 2018-01-13

how to put the radio mode

Asked by: khen
Please see page 24 of the manual here: ^AC
Answered by: amber
Date published: 2017-12-28

How do I get it to play to my tv?? I need owners manual

Asked by: Spanky87
Please see the owners manual here: ^AC
Answered by: amber
Date published: 2017-12-23

Is there a way to adjust the bass on this unit

Asked by: Lglover2017
The LG 720W Hi-Fi Entertainment System with Bluetooth® Connectivity, Model # CJ45 has a Region EQ / Bass Blast button that when held for 3 seconds lets you directly select the Bass (Bass Blast) effect. It also has a number of pre-set surround sound fields (POP, CLASSIC, ROCK, and JAZZ) that will have different bass effects...^IFV
Answered by: LGJoel
Date published: 2018-01-05

How do I connect wireless headphones

Asked by: Ger butler l
Check out this easy set up link. ^AC
Answered by: amber
Date published: 2017-11-16

How to get to AM stereo

Asked by: podcast44
The LG 720W Hi-Fi Entertainment System with Bluetooth® Connectivity, Model # CJ45 only has an FM band (FM Tuning Range - 87.5 to 108.0 MHz or 87.50 to 108.00 MHz), it does not have an AM band...^IFV
Answered by: LGJoel
Date published: 2018-01-05

How do I program the remote with the radio channels

Asked by: Bigdog77
You can program radio channel presets into the remote with these 7 easy steps: You can preset 50 stations for FM. Before tuning, make sure to turn down the volume. 1. Press F until FM appears in the display window. 2. Select the desired frequency by pressing TUNING -/+ on the remote control or Y/U on the unit. 3. Press PROGRAM/MEMORY on the remote control. A preset number will blink in the display window. 4. Press PRESET·FOLDER W/S on the remote control to select the preset number you want. 5. Press PROGRAM/MEMORY on the remote control. The station is stored. 6. Repeat steps 2 to 5 to store other stations. 7. To listen a preset station, press PRESET·FOLDER W/S or 0 to 9 numerical buttons on the remote control. ^CP
Answered by: ChrisPSM
Date published: 2017-10-18

How do i activate the led lights on this system?

Asked by: robi rob
We apologize for the inconvenience this unit does not have any lights other than the screen display. ^CP
Answered by: ChrisPSM
Date published: 2018-01-05
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