Headphones
| Wearing style |
Neck-band |
| Ear coupling |
Supraaural |
| Headphone sensitivity |
85 dB |
| Headphone frequency |
20 - 20000 Hz |
| Driver unit |
12 mm |
Ports & interfaces
| Frequency band |
2.4 GHz |
| Wireless range |
10 m |
Additionally
| Wireless technologies |
Wireless |
IronKey BDefender FreeMotion B611. Ear coupling: Supraaural, Wearing style: Neck-band, Headphone frequency: 20 - 20000 Hz. Connectivity technology: Wireless, Device interface: Bluetooth, Wireless range: 10 m. Battery life (max): 7 h, Battery technology: Lithium, Charging source: USB. Colour of product: Blue