... : 1 years, 20. CE, FCC, RoHS approval CallTel T200 Polaris Monaural Over-The-Head Headset complete with a 10-feet Polaris cord for DIRECT ... Polaris headsets require no amplifier! They plug directly into your headset-ready telephone! What's in the box: Headset shown above, plus ... 4610, 4620, 4621 5410, 5420 5610, 5620 DT1, DT3, DT5 Cable & Wireless: CWB 100H, CWB 200H, CWB 500, CWB 600 Comdial ...