This product can quickly set up the digital player and car or home audio system??s wireless link. It only needs to connect the FM transmitter to MP3 player or any other audio player, such as MP3 player, portable DVD , PDA, MP3, CD, tape recorder or computer. Instruction:1. Install the battery into the FM transmitter and turn on the power.2. Insert the audio input jack to the audio player??s output socket.3. Turn on the audio player and press "scan" button to choose the correct channel. The corresponding channel indicator light will be on for your choice.4. Turn on the FM radio, turn to corresponding channel then you could enjoy music.？？Specification:A. Frequency Channel: 88.1 MHz, 88.3 MHz and 88.5 MHzB. Frequency Stability: 10 ppmC. Modulation mode: 75KHz wide bandD. Syntonic Preference: no more than 60dBE. Transmit Distance: more than 5 metreF. Signal to noise ratio: >45dBG. Input Voltage: 3V
