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The LA-423 USB Charger from Listen Technologies offers an easy way to simultaneously charge up to four (4) Listen iDSP products. Ideal for smaller venues including classrooms, conference rooms, and more, the LA-423 features fold-away plug blades and a slim design for convenient transport and storage. A small LED on the front of the charger illuminates when the charger is plugged into a live power socket.


One (1) LA-423 4-Port USB Charger
Four (4) LA-422 USB to Micro USB Cable


  • Capable of charging up to four Listen Technologies iDSP devices at once
  • Compact design and fold-away plug blades for easy storage
  • Ideal for use in smaller venues and spaces
  • Single LED charge indicator illuminates when power is present
Configurations & Architectural Specs


LA-423-01 4-Port USB Charger (North America)

Product Specifications
Specification LA-423


Power Supply Input 100-240 V, 50-60 Hz, 0.5 A
Power Supply Output 5.0 VDC, 4.2 A


Color Black
Shipping Weight 1.0 lbs. (454 g)
Cable Length 36 in. (92 cm)
Cable Type 4 - USB to Micro USB Cables (LA-422)
Dimensions (H x W x D) 2.44 in. x 2.90 in. x 1.13 in. (62 mm x 74 mm x 29 mm)
Unit Weight 7.80 oz. (221 g)


Standards UL, FCC, RoHS
Used With
Q What is Listen Technologies product warranty?
A Click for Listen's product warranty.
Q What is the purpose of the LA-423?
A The LA-423 is used to charge up to four Listen Intelligent portable products.
Q Can I use the product outside of North America?
A Yes, but you will need an international plug adapter.
Q Can you charge other USB type devices with the LA-423?
A Yes, but it is highly recommended to check with the manufacturer of the other device for specification compatibility.
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