Standard 5 wire audio handset.
The main characteristics of the Tekna T-500 series telephones with 4+n wires installations are:
- Casing manufactured in polished ABS RAL9003 white colour
- Detachable telephone cord with connectors
- Wall mounting with multiple fixing points
- The T-500 has an electronic call tone
- Lock release button
86mm x 220mm x 56mm