Casque Defender Pulse 420 noir-jaune

The DEFENDER Headphones Pulse 420 Black-Yellow are wired in-ear headphones designed for everyday listening and voice communication. They feature a black and yellow color scheme, soft ear pads and an adjustable fit that balances comfort with portability. With a declared frequency response covering 20 Hz to 20 kHz and an integrated microphone, these headphones provide clear audio reproduction for music, podcasts and hands-free calls. The 1.2 m cable and lightweight construction support mobile use with smartphones, tablets and laptops.

Advantages

The Pulse 420 combines compact in-ear ergonomics with a wired connection to deliver stable audio without the need for charging. The adjustable wearing style and soft ear pads reduce listener fatigue during extended use. A built-in microphone allows convenient voice communication and call handling. The black-yellow design offers a distinct appearance while remaining suitable for daily use and commuting.

Suitable for

• Listening to music and podcasts on phones and portable players
• Hands-free voice and video calls
• Commutes and public transport use
• Everyday portable use with laptops and tablets

Key specifications

• Ear coupling: in-ear
• Connectivity: wired
• Frequency response: 20 Hz – 20 kHz
• Cable length: 1.2 m
• Wearing style: in-ear with adjustable fit
• Colors: black and yellow
• Built-in microphone for hands-free calls

How to use

Insert the ear tips gently into the ear canal and adjust the fit for comfort and sound isolation. Connect the 1.2 m cable to the audio jack of your device. Use the integrated microphone to take calls—speak normally and position the microphone near the mouth for best voice clarity. After use, wind the cable loosely to avoid tangles and store the headphones in a pocket or small pouch for transport.

Recommendations

For optimal sound and comfort, choose ear tip sizes that provide a secure seal without causing pressure. Keep volume at safe levels to protect hearing during extended listening. Avoid exposing the cable and connector to excessive pulling or moisture to prolong product life.