Defender Basic 619 Black-Red (MPN 63619) are wired in-ear headphones for listening to audio on devices with a 3.5 mm jack. Their black-and-red finish identifies this version of the Basic 619.
The 1.1 m cable ends in a 3-contact plug. The headphones use 10 mm drivers, with 32 Ω impedance and 105 dB sensitivity. Their stated frequency range is 20–20,000 Hz.
There is no microphone, so this model is intended for audio playback rather than voice calls. The wired connection is suitable for compatible devices with a 3.5 mm audio jack.