Item Item Type: Wired Telephone Headset Material: ABSApplication: Office/Family and OthersPackage List1 x Attendant Telephone1 x Attendant Headset1 x Connection Line1 x Bracket1 x ManualThe volume of the speaker phone and earpiece does not support adjustment.1The call center phone is equipped with an omnidirectional microphone to improve voice clarity and achieve excellent highquality sound. 2The ringtone and earphone volume can be adjusted, so you can clearly hear the other party's voice even in a noisy environment. 3The microphone arm of the headset can freely rotate 330 degrees, and the very soft ear pads are suitable for 724 hours of high frequency use. 4It 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. 5With handsfree conversation, you can talk, listen, and improve work efficiency without holding your mobile phone.