Logitech Stereo Speakers Z120, USB Powered (Open Sealed)

Logitech Z120 Compact Stereo Speakers – USB Powered, 3.5mm Audio, 1.2W RMS – White (Open Sealed)

Description

The Logitech Z120 Stereo Speakers are compact USB-powered desktop speakers designed for simple everyday audio from PCs, laptops, monitors, and other devices with a 3.5mm audio output.

The Z120 uses USB for power and a separate 3.5mm analog connection for audio, making setup simple without requiring a dedicated AC wall adapter. The 2.0-channel speaker system delivers 1.2W RMS total output, with 0.6W RMS from each speaker.

A combined power and volume control knob is conveniently positioned on the right speaker, while integrated cable management on the back helps reduce excess cable clutter.

Model: Logitech Z120
Part Number: 980-000513
Color: White
Condition: Open Sealed

Key Features

• Logitech Z120
• Compact 2.0 Stereo Speaker System
• USB Powered
• 3.5mm Analog Audio Input
• 1.2W RMS Total Output
• 0.6W RMS per Speaker
• Frequency Response: 20Hz–20kHz
• Maximum SPL: Above 83dB
• Integrated Power & Volume Control
• On/Off LED Indicator
• Built-In Cable Management
• Compact Desktop Design
• Plug-and-Play Operation
• No External AC Adapter Required
• No Battery Required
• No Bluetooth
• No Software Required
• Color: White
• Condition: Open Sealed

USB Powered

The Logitech Z120 receives power through a standard USB connection.

Simply connect the USB cable to a powered USB port on a:

• Desktop PC
• Laptop
• USB Hub with sufficient power
• Compatible USB Power Source

No separate AC power adapter is required.

Important USB Audio Note

The USB connection is for power only.

Audio is transmitted separately through the speaker's 3.5mm analog stereo plug.

Connections

• USB: Power
• 3.5mm: Audio

The Z120 should therefore not be advertised as a USB digital-audio speaker.

2.0 Stereo Sound

The Z120 is a 2.0-channel stereo speaker system consisting of left and right satellite speakers.

Audio Performance

• Total Output: 1.2W RMS
• Left Speaker: 0.6W RMS
• Right Speaker: 0.6W RMS
• Frequency Response: 20Hz–20kHz
• Maximum SPL: >83dB

The compact output makes the Z120 suitable for close-range desktop listening, calls, videos, music, and general computer audio.

Easy Power & Volume Control

A single control knob on the right speaker provides convenient access to:

• Power On / Off
• Volume Adjustment

An integrated LED indicates the speaker's power status.

Built-In Cable Management

The back of the speakers incorporates a simple cable management system.

This allows excess cable length to be adjusted and stored more neatly, helping maintain a cleaner desktop setup.

Compact Desktop Design

Each Z120 speaker is approximately 110mm high, making the pair easy to position beside a monitor or laptop without occupying excessive desk space.

The compact design makes them suitable for:

• Desktop PCs
• Laptops
• Home Offices
• Study Desks
• Workstations
• Small Gaming Setups
• General Multimedia Use

Specifications

Dimensions

Each speaker measures approximately:

• Height: 110mm
• Width: 88–90mm
• Depth: 88–90mm

Logitech's technical support page lists the left speaker at approximately 253g and the right speaker at approximately 277g.

Quick Product Fields

• Product Type: 2.0 Stereo Speakers
• Power: USB Powered
• Audio Input: 3.5mm
• Total Output: 1.2W RMS
• Frequency Response: 20Hz–20kHz
• Volume Control: Yes
• Power Control: Yes
• Bluetooth: No
• Wireless: No
• Battery: No
• External Power Adapter: Not Required
• Software Required: No
• Color: White
• Condition: Open Sealed

Compatibility

The Logitech Z120 can work with devices that provide both:

1. A USB port or suitable USB source for power
2. A 3.5mm headphone/audio output

This can include compatible:

• Windows PCs
• Mac Computers
• Laptops
• Monitors with 3.5mm Audio Out
• Tablets with 3.5mm Output
• Smartphones with 3.5mm Output
• Other Analog Audio Devices

No operating-system-specific software is required because the audio connection is analog.

Important Bluetooth Note

The Logitech Z120 does not have Bluetooth or other wireless audio connectivity.

It is a fully wired speaker system using:

• USB for power
• 3.5mm for audio

Important Power Note

USB supplies power to the speakers but does not carry the audio signal.

Both the USB power cable and 3.5mm audio connection need to be connected for normal operation.

Standard Package Contents

Logitech officially lists the standard package with:

• 2× Logitech Z120 Speakers
• User Documentation

The USB power and 3.5mm audio cables are integrated into the speaker system.

Important Note – Open Sealed

This product is listed as Open Sealed, meaning the original packaging has been opened.

Before publishing or sale, verify the individual unit's:

• Both speakers
• Speaker cosmetic condition
• USB power cable
• 3.5mm audio cable
• Left and right audio channels
• Volume/power knob
• LED power indicator
• Cable management area
• Cable and connector condition
• Packaging condition
• Warranty details

Best For

• Desktop PCs
• Laptops
• Home Offices
• Study Desks
• Online Classes
• Music & Videos
• YouTube
• Voice & Video Calls
• Casual Gaming
• Small Workstations
• Users looking for simple compact desktop speakers

Why Choose the Logitech Z120?

• USB-powered design eliminates the need for a separate AC adapter.
• Standard 3.5mm audio input provides broad analog-device compatibility.
• 1.2W RMS stereo output is suitable for everyday close-range desktop listening.
• Compact size takes up minimal desk space.
• Integrated power and volume knob provides simple control.
• Built-in cable management helps keep the desk organized.
• No batteries, drivers, or dedicated software are required.
• Simple plug-and-play design is suitable for work, study, music, videos, and general computer use.