CQtransceiver Call Center Conference Telephone Headset for Aastra 53i 55i 57i 57iCT Phone Mono Headphone

Description

Monaural over-the-head wearing style for comfort and awareness of environment Flexible boom design allows to adjust mic freely RJ9 connector to replace telephone handset 2M coiled wire Direct connect over the head headset Specifications: Cable: Cable strenth : pulling force 10 Lbs Registance: less than 0.3¦¸ per meter Conductor: (8/0.1+250D)¡Á4 Dimension: ¦Õ2.7¡Á2M Connector: RJ9 4 PIN Speaker: Type: moving-coil Registance:150¦¸ Sensitivity: 110¡À5dB at 20¦ÌPa=0db,1KHz Frequency: 800¡À50Hz Rated Power:5mW Max Power: 20mW Microphone Sensitivity: -52DB Work with below Aastra telephones: 2465, 2564, 480e, 480i, 53i, 55i, 57i, 57iCT, 6753i, 6755i, 6757i, 9112i, 9133i, 9143i, 9480i M4000, M4020, M5208, M5209, M5216, M5317 M7900, M8001, M8003, M9009, M9516