Features: Full-band work, the frequency from 70MHz ~ 108MHz range can be arbitrarily set.<br> Excellent heat dissipation, stable and reliable power. Easy to use and operate. You can operate all functions on the interface.<br> The FM mitter is with its small size, allowing Maximum portability-perfect for traveling.<br> High signal intensity and good sound quality, suitable for home, car, classrooms, auditoriums, dormitories, squares, etc.<br> This mini FM mitter can convert audio signal of , PC, TV and other audio players into high-fidelity wireless FM stereo signal. Using FM radio as a receiver, This FM mitter can mit music to your FM radio, and enjoy stereo music without line trouble.<br> Specification:<br> mitting Frequency: 70MHz-108MHz (adjustable)<br> Boot Frequency is: 87MHz (Default)<br> Stereo Resolution: equal 40db<br> Signal to Noise Ratio: equal 65db<br> mitting Power: equal 10mw<br> Working Current: less than equal 75mA<br> Operating Voltage: 2.2V-3.3V<br> Standby Current: less than equal 1uA<br> Operating Temperature: 0-70 ℃<br> mitting Distance: 50 meters or so / 164ft<br> Battery: 2 * AAA battery (not included)<br> Instructions:<br> 1. Connect the audio signal line, install the battery ( two AAA batteries), long the "power switch" to boot for 3 seconds. Then the display shows the 87MHz mit frequency.<br> 2. Select an appropriate frequency by the "Frequency +" and "Frequency -" keys, the frequency word flashing. Then the "OK" button within 20 seconds, the frequency word is no longer flashing, at this moment, the frequency on the screen is Actual mission frequency.<br> 3. "Frequency Lock" key is used to lock the frequency: long the "Frequency Lock" key for 3 seconds. When displaying "LOC" words, it means lock frequency work successful, the "Frequency +" & "Frequency -" key not working. Then long the "Frequency Lock" key for 3 seconds to cancel the lock function.<br> Co