Features: Disciplined oscillator with a 10KHz-220MHz frequency standard supports satellite for precise frequency calibration and generation. Double-channel adjustable frequency allows separate adjustment of frequencies for each channel, with the ability to save 5 frequencies per channel. Available in green backlights and white backlights LCD screens (randomly shipped) for easy visibility and control. Features a power supply voltages of DC8-13V with low power consumption (<150mA) for efficient operating. Includes main unit, power supply, and antenna (3m9.8ft ) for convenient setups and usage. Specifications: Material:Aluminium Power consumption: <150mA Adjustable frequency: 10KHz-220MHz Package Includes: 1Set Taming Clock note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.