Feature:1. The call center phone is equipped with an omnidirectional microphone to improve voice clarity and achieve excellent high‑quality sound.2. The ringtone and earphone volume can be adjusted, so you can clearly hear the other party's voice even in a noisy environment.3. The microphone arm of the headset can freely rotate 330 degrees, and the very soft ear pads are suitable for 7×24 hours of high frequency use.4. It can be connected to an existing standard telephone jack without a battery and it has durable structure and rigid design which extend the service life.5. With hands‑free conversation, you can talk, listen, and improve work efficiency without holding your mobile phone.How to Use:Plug and play.Specification:Item Item Type: Wired Telephone Headset Material: ABSApplication: Office/Family and Others Package List:1 x Attendant Telephone1 x Attendant Headset1 x Connection Line1 x Bracket1 x ManualNote:The volume of the speaker phone and earpiece does not support adjustment.