Description: brand new and high quality Feature: This kit includes all the components and circuit boards, but does not include the power supply, antenna, cable, audio cable and coaxial cable. A 0.5W-7W FM transmitter without any debugging. Need you're a novice or a veteran, as long as you will welding, you can successful DIY a high-quality FM transmitter. Mainly consists of various series microcontroller and a dot for matrix LCD display screen and a keyboard. DSP + PLL technology, make the frequency more stable, the frequency does not change with the environment and produce frequency drift. No need any adjustment, bring the fun of DIY to beginners. The frequency can be continuous adjustment within the specified scope. With microphone input interface, and can through digital potentiometer to control the volume of the microphone. Audio input by digital potentiometer which can adjust the volume. Power can be between 0.5 for W and 7 for W maximum power continuous adjustment. The power output net-work for harmonic suppression is very good, make the output spectrum is more clean. Set the frequency and volume of power lost for protection, the next boot does not need to set up again! Specifications: Item Type: FM Transmitter Material: metal Size: Fireproof board: 100x60mm/3.9x2.3in, Control panel: 58x36mm/2.2x1.4in Color: As shown Input voltage: dc12v Microphone types: cylinder microphone Output power: 0.5 for W - 7 for W continuous adjustable Output impedance: 50 Quantity: 1 PC Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 x FM Transmitter 1 x LCD Screen