FSK / DTMF caller display, automatic checking.
30 incoming, 5 outgoing number memories.
2 digits PABX code setup.
32 digits pre-dial and edit.
Green Backlight in-use.
With LED indication.
Flash and Mute function.
Headset speaker volume control by knob.
Ringer volume hi-low-off adjustable.
Flash time 100ms or 600ms choice.
Power save function.

Specifications:
Model: HT500
Color: Black
Material: ABS
Subject size: 14 * 10 * 8cm / 5.5 * 3.9 * 3.1in
Subject weight: 264g / 9.31oz
Package size: 17.5 * 14.5 * 10.5cm / 6.9 * 5.7 * 4.1in
Package Weight: 506g / 17.84oz