PUSOKEI Portable Mini Wireless FM Transmitter, 70MHz ~ 108MHz FM Transmitter,FM Converter Adapter,Suitable for Home/Car/Classrooms/Auditoriums/Dormitories/Squares

Description: This mini FM transmitter can convert audio signal of  iPad, PC, TV and other audio players into high-fidelity wireless FM stereo signal. Using FM radio as a receiver, This FM transmitter can transmit music to your FM radio, and enjoy stereo music without line trouble. Specification: Package Weight: 87g Transmitting Frequency: 70MHz-108MHz (adjustable) Boot Frequency is: 87MHz (Default) Stereo Resolution: ? 40db Signal to Noise Ratio: ? 65db Transmitting Power: ? 10mw Working Current: ? 75mA Operating Voltage: 2.2V-3.3V Standby Current: ?1uA Operating Temperature: 0-70 ? Transmitting Distance: 50 meters or so / 164ft Battery: 2 * AAA battery (not included) Instructions: 1. Connect the audio signal line, install the battery ( two AAA batteries), long press the "power switch"  to boot for 3 seconds. Then the display shows the 87MHz transmit frequency. 2. Select an appropriate frequency by the "Frequency +" and "Frequency -" keys, the  frequency word flashing. Then press the "OK" button within 20 seconds,  the frequency word is no longer flashing, at this moment, the frequency on the screen is Actual transmission frequency. 3. "Frequency Lock" key is used to lock the frequency: long press 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 press the  "Frequency Lock" key for 3 seconds to cancel the lock function. Package Included: 1 x FM transmitter 1 x Audio Cable 1 x User Manual