Replacement or additional headphones suitable for the wireless headphone systems RS 115, RS 117, RS118, RS 119, RS 119-II, RS 120, RS 120-II.
Wired headphones, HiFi/Stereo, wireless, Bluetooth, version 5.0, headset function with integrated microphone, foldable, closed system, frequency range 18-22,000 Hz, battery operation, battery life up to 30 hours, controllable via app, USB cable.