Compact Design:At just 10 x 5.4cm, the board's size is ideal for space-conscious radio and transmitter setups. Material:Constructed to withstand up to 105, ensuring reliability in high-temperature environments. Optimized Power Consumption:Consumes 17-18A at 27V, offering an efficient power-to-performance ratio for your transmitter. Wide Frequency Range:Operates efficiently across 75-120MHz, catering to diverse FM transmitter needs. Amplifier Board| Amplifier Board For Fm Transmitter|High Power Output:Delivers a robust 300W output, ensuring powerful FM transmission for clear, wide-reaching signals. Specifications: Power supply: 27V Working current: 17-18A Power: 300W (maximum 350W 300W is recommended) Frequency range: 75-120MHz Input power: 1W Output impedance: 50 ohms Board size: 10 x 5.4cm/3.9 x 2.1 inch Color: Black Material: ABS Package Contents: 1 Amplifier Board Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.