Description

1.Tone controller to quality bass and treble sound
2.Universal compatibility with most of telephone (Electonics & Carbon) like Toshiba, Northern, AT&T, GTE, Siemans, Panasonic, branded and LG key phone, PABX and PSTN system.
3.Busy light in use.
4.Headset compatibility switch.
5.Tx/Rx level adjustment switch.
6.Headset/Handset selection switch. 
7.Jack for exterior recorder.
8.Headset stand included.
9.AC/DC power adapter