Casque Deltaco HL-51

The Deltaco HL-51 wired headphones provide a focused listening experience for users who prefer a reliable, cable-connected solution. These circumaural, head-band style headphones cover the ears to deliver a frequency response of 20–20,000 Hz and clear audio reproduction for music and everyday audio playback. The 2.5 m cable gives extended reach for use at a desk, in home setups or near audio sources, while the lightweight 215 g construction aims to reduce fatigue during longer sessions. The matte black finish offers a neutral, functional appearance that fits multiple environments.

Advantages

The HL-51 offers over-ear ear coupling which improves passive noise isolation and helps maintain sound clarity across a wide frequency range. Wired connectivity provides consistent signal transfer without the need for pairing or battery charging. The long cable length supports flexible positioning relative to the connected device, and the light overall weight contributes to comfortable wearing over extended periods.

Suitable for

• Listening to music at home or in a small studio
• Desktop use with computer or audio equipment
• Online meetings and voice calls with a stable wired connection
• Long listening sessions where comfort and passive isolation are important

Key specifications

• Ear coupling: Circumaural (over-ear)
• Connectivity: Wired
• Frequency range: 20–20,000 Hz
• Cable length: 2.5 m
• Wearing style: Head-band
• Weight: 0.215 kg
• Colour: Black

How to use

Connect the headphones to the appropriate audio output on your device and adjust the head-band for a secure but comfortable fit. Position the ear cups so they fully encompass the ears to maximize passive isolation and consistent sound reproduction. Use the 2.5 m cable to place your audio source at a convenient distance; avoid sharp bends or pulling on the cable to extend its service life.

Recommendations

For best results, pair the HL-51 with devices that provide a clear, low-noise headphone output. Keep listening volumes at safe levels to protect hearing during extended use, and store the headphones in a dry place when not in use to prolong the product lifespan.