Casse per PC DEFENDER J4 2.0 6W LED USB, 3,5 mm, 90–20000 Hz, nero

DEFENDER J4 are wired 2.0 PC speakers with a built-in amplifier, total RMS power 6 W and LED indicator. They are powered via USB (5 V DC) and connect to audio sources with a 3.5 mm cable. Designed for tabletop or bookshelf placement, the speakers cover a frequency range of 90–20,000 Hz and have a plastic housing with a dedicated on/off switch. The package includes a user manual and a warranty card.

Advantages

Compact wired design with a built-in amplifier provides plug-and-play operation from a USB power source while a 3.5 mm input ensures compatibility with most PCs and audio devices. The speakers offer a full audio band from 90 Hz to 20 kHz and an LED indicator for simple status feedback. Lightweight plastic housing and tabletop/bookshelf form factor make them easy to position on a desk or shelf.

Suitable for

• Desktop PC audio and casual multimedia playback
• Office use for calls and background music
• Basic gaming audio and video playback

Key specifications

• Configuration: 2.0 channels (stereo)
• Total RMS power: 6 W
• Frequency response: 90–20,000 Hz
• Power input: DC 5 V via USB
• Audio input: 3.5 mm wired connection
• Speaker placement: Tabletop / bookshelf
• Housing material: Plastic
• Controls: On/off switch

How to use

Connect the speakers to a USB power source using the included cable and plug the 3.5 mm audio connector into the headphone or line-out jack of your PC or other audio device. Place the speakers on a stable tabletop or bookshelf surface, switch the unit on with the onboard power switch, then adjust audio level from the connected device. Avoid positioning the speakers where they can easily be knocked over or where the vents (if any) are blocked.

Recommendations

Do not expose the device to moisture or water. For reliable operation, use a stable USB power source and keep the speakers on a flat, level surface away from direct heat or liquids.