super-sound Wireless Fm transmitter with handsfree for
calls!....wholesale〓N2,000...Retail〓N2,500.
Transmits quality audio signals wirelessly from your phone
to your car audio so you can safely make & receive calls while
driving with its superb hands-free function. - Play music &
watch videos from your cell phone with quality audio output. -
Also suitable for GPS navigation. - Has built-in rechargeable
battery. - Works with phones, GPS, Laptops and other devices
with a 3.5mm audio jack. - Can also stream audio from your
laptop/phone/TV etc. to your home stereo. - Ideal for home,
office & car use. - Comes with a dual usage car charger- No
sound echo.
call; 08170010547, whatsapp; 08023545583.

does it work with all phones? esp android? Cos I know Nokia is the only phone that has this as an in-built technology.

and is it for all cars too?

There are cheap 72MHz transmitters for sale that are easy to use. But the quality isn't as high as the FS-I6S. The TBS Crossfire Micro is great for FPV. To learn more about best quadcopter drone transmitter for fpv / non fpv drones (updated 2020), visit on hyperlinked site.