Features: Low noise amplifier: The C919 low noise amplifier with excellent low noise performances, effectively improving signal reception quality. 3-5V power: suitable for various power environment, easy for users to choose the appropriate power according to their needs. Highly sensitivity: Provides powerful signal enhancement function, which can capture and amplifying weak signal. Strong stability: Reliable circuit design and materials are used to ensure stable performances. Small and portable: small in size, light in weight, easy to carry and install. Specifications: Material: ABS Model Name: C919 Low Noise Amplifier Noise coefficient: 0.6dB Gain: 25dB Power supply: 3-5V Frequency: 10KHz-6GHz Package Includes: 1x C919 Low Noise Amplifier note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.