Big button for easy dialing- 2 Way speakerphone with volume control- Volume control on receiver for handset- Receiving volume gain +40dB- Receiving tone gain +/-10dB- Speech volume gain +/-3dB- Hearing aid compatible- 10 two-touch memories for speed dialing the memories are backed up even if the unit is unplugged from the line- 2 one-touch speed dialing the memories are backed up even if the unit is unplugged from the line- Red 911 Emergency Key. This number is backed up even if the unit is unplugged from the line- Bright neon for incoming calls / PBX message light- Flash key for call waiting- Redial key- Hold key with music- Ringer hi/low/off switch- Store on/off switch (Prevents memories accidentally being erased or changed)- Desk/wall mountable- Color black- FCC approved - 4357B
