Speaker W/ 14Db Amp & 90 V MW- Single line corded telephone- Half duplex speakerphone- 12 programmable speed-dial feature keys- Amplification up to 14dB- Programmable MSG key- Headset jack- Headset on/off (do not have to lift eceiver to answer a call, just press handset button)- Redial/flash/hold/mute- Data port- Voicemail visual ring indicator- Wall mount bracket included- 90V Message waiting light/visual ring indicator- LED indicates status of mute, hold, headset, and speakerphone modes- Ringer volume control (high/low/off)- Hearing aid compatible- Gray (light gray)AEGISHDST12