Product Review

This mini FM Transmitter works with any 3.5mm audio device. It is perfect to use at in car. Simply insert the FM Transmitter into the audio socket of your device (smartphone, tablet, or mp3 player, any device with 3.5mm audio jack) and adjust the FM transmitter to an FM radio signal which is not occupied by a local broadcast. Now you can play your music through your FM radio! Also when calls come in you can answer them hands free through your car speaker. The digital display shows the frequency and battery level. Lastly, with a built-in rechargeable battery, this FM transmitter can be charged by most USB power sources.

SPECIFICATION
Output Voltage: 5±0.1V
Battery: 100 mAh
FM Frequency: 87.5-108.0MHZ
Frequency Response: 100-15000Hz
Transmission Distance: 5 meters
Storage Temperature: -4°F-120°F
Operating Temperature: 10°F-100°F
Size: 2.36"×1.46"×0.39" (L×W×H)
Weight: 0.55oz
Package Size: 5.02"×3.15"×0.79" (L×W×H) 
Package Weight: 1.5oz

Package Included:
1 * FM Transmitter 
1 * USB Charging Cable