Wireless Headphones with microphone DEFENDER FREEMOTION B571 LED

Recommended usage: Universal | LED backlight: Yes | Maximum operating distance: 10 m | Headphone frequency: 20 - 20000 Hz | Connectivity technology: Wireless | Driver unit: 4 cm | Headphone sensitivity: 105 dB | Ear coupling: Circumaural | Acoustic system: Closed | Wearing style: Head-band | Headset type: Binaural | Operating time: 6 - 8 hours | Product type: Headset | Quantity: 1