- Wireless headphones for an undisturbed audio experience for two without movement restrictions ,- High quality sound thanks to noise suppression system (PLL system) ,- Volume control on the headphones ,- 2 transmission channels for avoiding interference ,- High level of wearing comfort thanks to the ergonomically shaped, very soft earpad ,- Self-regulating band guarantees a comfortable fit ,- Integrated charging function / battery charging control ,- 863 MHz transmission frequency ,- Wireless technology offers excellent hearing range of 100 m with clear line of sight