Feature: 1. Frequency Range: The transceiver has all 40 CB channels and can go from 26.965 to 27.405 MHz, stable and reliable. 2. Portable Design: The CB transceiver is lightweight, ultra thin and easy to carry, giving you an excellent use experience. 3. Stable Connection: You can install the transceiver in any location where 12‑16V DC power is available, and it can be connected to either the negative or positive terminal. 4. Fuse Replacement: If replacing a fuse in the DC power cord, use a 2 amp type (one as a spare). Hold the fuse holder and press inward, then rotate the fuse holder. 5. Performance: Antenna length is directly related to the efficiency, the longer the time, the higher the efficiency, please make sure your antenna is compatible with the machine. Specification: Item Type: CB TransceiverMaterial: Metal .Parameter Information: Frequency Range: 26.965 to 27.405 MHz for all 40 CB channels Modulation Mode: AM modulation (A3) Required Power Supply: 12-16 V DC Antenna Impedance: 50 ohms Output Power: 1W Modulation Capacity: 80-90% Spurious Emission: 62dB or better Frequency Tolerance: Better than 0.002% Current Consumption (13.8V) : 1.3 amps (no modulation) 2.0 amps (full modulation) Sensitivity: 1.0μV or better for 10dB S+N/N Adjacent Channel Inhibition: 60dB (at 10KHz) > 70dB (for 20KHz) Intermediate Frequency: 1st IF = 10.695MHz, 2nd IF = 455KHz Audio Output: 4.5 Watts maximumFrequency Response: 450-2500Hz Cross Modulation: 45dB or better Noise: Adjustable from 1.2μV to 1mV Transmitting Power: 1W Package List: 1 x CB Transceiver1 x User Manual1 x Mounting Bracket 2 x Accessories Pack (7PCS) 1 x Fitting Pipe Note: 1. Do not install the transceiver in the path of the heater or air conditioning airflow. Take your time and plan your installation carefully.2. After determining the best mounting location, use the mounting bracket as a template to mark the mounting holes.3. Be careful not to drill into wiring, trim, or other accessories when drilling holes.4. Mount in place using bolts, lock washers and nuts or self threading screws