Motorola CB200 Callbox. Model Number CBU0010MKKAA Frequency UHF Frequency Range 452-470 MHz Channel Capacity 1 Channel Bandwidth 11.25kHz, 20kHz 12.5 kHz, 25 kHz * Range Coverage Up to 130,000 ft in Retail Coverage Dimensions (H x W x D) 7.5 in x 4.3 in x 1.2 in Weight with: Standard Alkaline Battery (1lb) Battery Type AA Batteries (6) Battery Life 1 Year Operating Voltage 4.0 V