Feature 1 LCD 3line display. Premark and edit features. Redial and pause functions. 2 The same basic unit can register up to 5 devices, and each device can register up to 4 basic devices. 3 30 memory input numbers and 10 memory output numbers. 50 phone book memories, containing 12 characters, up to 20 numbers. 4 The call is transferred to another device and the internal call between the 2 devices. External calls and conference calls between 2 phones. 5 10 touches to choose. The ringtone/headphone/handsfree volume is adjustable. Different melody for different calls. 6 Alarm function. You can set the tone/pulse dialing mode. Flashing time 100/300/600/1000ms for selection. 16 interface languages. 7 LCD backlight function. Automatic/manual answer function. Dial restriction function. Keyboard lock function. Mute function.Item Type: TelephoneMaterial: Plastic Color: As Pictures Shown Weight: Approx. 442g/15.6ozProduct Model: D1002Frequency: 1.8/1.9ghzType of Ringtone: 10 SongsGAP Protocol: SupportCall Storage: 30 GroupsCalling System: FSK/DTMF Dual SystemHands-free Calling: Both Host and Sub-machine Are SupportedTelephone Transfer: SupportCharging Function: Sub-machine SupportPreset Dial: SupportedExtended Number of Submachines: Support 5pcsThird Party Call: Outside Line and 2pcs Sub-machine Type: Digital Cordless Telephone16 Interface Languages: Portuguese, Spanish, English, French, German, Italian, Dutch, Hungarian, Greek, Polish, Danish, Norwegian, Swedish, Turkish, Russian and Ukrainian.Ringer Adjustment: Ringer 5 Gear, Handset 5 Gear, Hands-free 6 GearAlarm Settings: SupportedDischarge Storage: 10 SetsInternal Intercom: Support Re-dial/stop: SupportPreset Dial: SupportedFlash Function: SupportedKeyboard Lock Feature: SupportedLuminous Function: Screen Blue BacklightWorking Indicator and Charging IndicatorBattery: 2XAAA Battery (not Included, Rechargeable Battery is Recommended)Wire Length of Adapter: Approx. 1.4m/4.6ftTelephone Line Length: Approx. 2m/6.6ft Package List1 x Sub- Telephone1 x Base1 x Manual1 x Power Adapter1 x Telephone CableNote2xAAA rechargeable batteries are recommended.