CZE-T251 25w FM transmitter. It is easier in operation, one button control for all functions. It has VSWR protection, temperature protection, electronic volume adjusting,equipped with low pass filters. It's applicable in many places, such as stadium, county radio station, community radio station, motel, public square,church,theater and so on. Working Voltage: 12V Working Current: 6A Frequency Range: 87-108MHz Frequency Stability: 10PPM Frequency Stepping: 100KHz Environment temperature: -10-45 Output Impedance: 50 RF output power: 0W-25W Harmonic, clutter radiation less than equal -60dB Audio distortion: 0.2% Frequency Response: 50Hz-15000Hz Separation: equal 35 dB Input level: less than equal 15 dBV Frequency Modulation:75KHZ : equal 70dB Colour:As Shown Material:PP+ Package Contents: 1x 25W Transmitter ONLY Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.