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Skip to Contents Skip to Accessibility Help

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.

AMPLIFIER
Total Output Power 720W
Front Speaker Output Power 240W x 2
Subwoofer Output Power 240W
CONVENIENCE
Bluetooth Remote App Support (iOS/Android) Yes
USB Direct Recording Yes
Karaoke Creator Yes
Multipoint Yes
FUNCTION SELECTOR
CD Yes
Tuner Yes
AUX1 Yes
USB1 Yes
USB2 Yes
Portable In Yes
Bluetooth Yes
SPEAKER
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"
INPUTS & OUTPUTS
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)
SOUND
EQ User EQ, Standard, Pop, Classic, Rock, Jazz, Bass Blast, Football
Auto DJ Yes
Multi Jukebox Yes
TUNER
Type PLL
Band FM/AM
FM Tuning Range (50kHz / 100kHz) 87.5 ~ 108.0 MHz
Memory/Erase Yes
Clock/Time/Sleep/Set Yes
PLAYABLE DISC / FILE TYPE
Number of Discs 1
Loading Type Tray
Playable Disc Audio CD, MP3, WMA CD, CD-R, CD-RW
Playable File Format MP3, WMA
POWER
Power Consumption 80W
Standby Less than 0.5W
INCLUDED ACCESSORIES
Remote Control Yes
Batteries AAA
FM Antenna Yes
DIMENSIONS / WEIGHT
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
WARRANTY / UPC
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 & ANSWER

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 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: 2017-10-17

Can you connect this device to any television in order to see the lyrics to the songs for more karaoke fun?

Asked by: Mashie
The LG 720W Hi-Fi Entertainment System with Bluetooth® Connectivity, Model # CJ45, does not play CD+G (Compact Disc Plus Graphics) cds. CD+G is a CD format that is specifically designed to store music without vocal tracks and to associate those songs with lyrics text and other graphics. These CDs are called CDGs or karaoke CDs. The Karaoke Creator function on this unit is a feature that 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 singe. On the remote control is a "Voice Canceller" button that suppresses the vocal frequencies and a KEY CHANGER(# / ♭) that changes the key to suit your vocal range. The unit does not display lyrics on a TV. It does not have an output to connect to a TV. It has an AUX IN (L/R) that can connect to an auxiliary device...^IFV
Answered by: LGJoel
Date published: 2017-09-21

I am leasing the CJ45 720 watt shelf system from Aarons. I hooked up the speakers put in a cd to listen to and there is an echo on every song on the disc. The guy at Aarons said there should be a reset button but I cant find it. How do I fix this problem?

Asked by: Lazerflight2017
We apologize about the issue you are having with the audio system. There would not be a reset button on the unit. With the unit echoing, it would be suggested to contact our Customer Interactive Center for troubleshooting assistance.
Answered by: NeilE
Date published: 2017-09-18

How can i get an remote for it, the person i brought it from didnt have the remote or the antenna wires for fm am radio.

Asked by: Katty cat
Accessories can be obtained through our parts distributor, MCM Electronics. Their contact number, for placing orders, is 800-824-9491. You can also use their website, at http://www.mcmelectronics.com/content/en-US/forms/lg_parts. The part number for the remote is: AKB74955341.
Answered by: NeilE
Date published: 2017-09-11

Do the speakers light up if so how do you turn them on

Asked by: Toyna84
The speakers on the LG 720W Hi-Fi Entertainment System with Bluetooth® Connectivity, Model # CJ45 do not light up. The image that seems like they are lighting up is actually a depiction of sound waves emanating from the speakers...^IFV
Answered by: LGJoel
Date published: 2017-09-06

Can this connect to my LG 65" 4K ultra HD tv

Asked by: Franklin0125
There is a plug called RCA or Composite In. You can plug a cable called: 2 RCA male to 2 RCA male.
Answered by: Mar1anna
Date published: 2017-08-27

How do I connect to my lg smart tv

Asked by: JJ1964
Depending on the LG TV, you can connect the device using the LG Sound Sync (Wireless) option. More information can be located on page 34 of the owner's manual.
Answered by: NeilE
Date published: 2017-08-11
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