Crafted from durable ABS, these telephones come in Black (DTPN0006) and Beige (DTPN0007). Built for workstation use, they feature ringer function, water splash protection, wide operating voltage (24V~60V DC), and optional flash time settings (100ms, 300ms, 600ms – standard 600ms), with reliable performance even in -10°C to +40°C environments.