Roger BaseStation is a stationary digital transmitter for Roger Earpiece receivers. It operates in the license-free 2.4 GHz band with adaptive frequency hopping. Balanced audio inputs are provided via XLR and 6.3 mm jacks, plus a 3.5 mm input. Audio bandwidth spans 100 Hz to 7200 Hz; SNR 55 dB; THD below 0.8% at 1 kHz. Range to Roger Earpiece is 15–40 m. Rack and wall mounts are included; supports unlimited Roger receivers within a network. Power is 100–240 VAC; dimensions 132 × 132 × 44 mm; weight 488 g.