Colour - Black, Refurbished, 12 months warranty. The Hybrex DK3-21 10 Button Digital Handset, offers digital system functionality at an economical price. Feature a two line display, handsfree operation, 10 bi-colour system DSS keys, and compatible with wireless or wired headsets. Features: Easy to read 16 character x 2 line LCD display, Full handsfree operation, In-built headset jack, Standard dial pad plus 10 function keys (5 lit by LED). Navigation key set 10 programmable system/function DSS keys lit by bi-colour LEDs. User control over audio levels of speaker, earpiece, mic, and camp-on tone. User control over ring level, style, and frequency.