FM Transmitter, GeeKee Wireless Radio Transmitter Car Kit Car Receiver Adapter with 3.5mm Audio Plug, 5V 2.4A Car Charger for iPhone 6s/5/4, Samsung S6 Edge Plus, Audio Players with 3.5mm Audio Jack

How to use Geekee FM transmitter?
First step: Plug GeeKee FM transmitter into car's cigarette lighter
Second step: Insert the AUX cable into your device's headphone jack
Third step: Select a clear frequency and start to enjoy FM play
Key points: Geekee FM transmitter is with charger port and 3.5mm jack Aux-in, you can charge any devices while enjoy the music with 3.5mm jack connected

Don't worry about the FM signal interference, here is a little skills following:
1. Plug into car electric outlet or cigarette lighter outlet
2. Next better to select a BLANK frequency,tune to a weak station on both the transmitter and your vehicles radio
3. Start playing your music on your device immediately

Specifications:
Frequency range: 88.1 to 107.9 MHz (0.1 MHz / step)
Input voltage: 9-24 V
Output voltage: USB 5V 2A max
LED Power Indicator: Red

Package includes:
1 x Geekee FM Transmitter
1 x Usage Manual