Features: Able to automatically identify caller ID in DTMF/FSK dual system. And You can check up to 50 groups incoming call number and 14 groups outgoing call number. Support 10 groups number double key storage function, which convenient to propose the required number. High quality voice IC chip, provide clear voice sound in hand free function. When you forget to take up the line or hang up badly, automatically take up the line. (with no clutter interference on the line) Elderly friendly telephone with big buttons, which is powered by the phone line. Real-time date and week display, LCD brightness adjustable in 5 levels. You can adjust the ringtone level using the "Switch" on the side of the phone, switch to "l" for low volume, "h" for high volume. Design with dual port, this desktop telephone can be connected to fax machines, telephone extensions, POS machines, switches. And the call collection time of the R key is 600MS, which is used in conjunction with the switch for switching. Lightweight & Simplify Design - The font on the button is clearly printed and easy for the elderly to identify. Lightweight telephone that can be placed on any surfaces. Wide Application - Compact size and convenience design, suitable for family home, hotel, etc. Specification: Model: C05 Color: White, Red, Black (Optional) Size: 21x17x7cm Weight: 508g/17.9oz Package Size: 21x21.5x7cm/8.2x8.4x2.7in Package Weight: 657g/1.4lb Packing List: 1 x Handset 1 x Telephone Base 1 x Coil Cord 1 x Telephone Line Cable 1 x User Guide(English)