Plantronics DECT C565 headset with charging station , up to 120 m range and 7 h talk time and AVM Fritz! Fon C6 Black DECT comfort phone black, German version: Amazon.de: Electronics
201827-02 | Plantronics Headset for DECT Phone, C565, Mono, On-Ear / In-Ear Ear-Hook, Wireless / DECT, Black | Distrelec Germany
Replacement Headset, for Savi 8240/45 Office & UC with Charge Cradle | Business Telecom Products