... 3. Adjustable headband 4. Direct with RJ11 plug5. Replaceable soft foam or soft leatherette ear pad optional 6. Speaker Diameter: ?28mm 7 ... , AUB6MW, AL505, Casino, Congress 100, 200, X50, Sim 200, Sensor 500, TEL15HS Ericsson Dialogue 4147, Dialogue 4186, MD110 ESI: ESI ... , IP560, IP560G, IP565 Siemens/ROLM: Optiset E Series with CA or HA option modules Optiset E Advance Optiset Advance Plus+ Headset ...