Goosky S1/S2/E2 APP Bluetooth Module

OEM part that works well

You pretty much need this dongle to talk to the FBL unit on the S1. I lost the one that came with it, so had to buy another. Good price and typical HD quick shipping.

As described

Nice

Goosky S1/S2/E2 APP Bluetooth Module

A must have addition to your smaller Goosky models. Making the slightest adjustments to particular channels is a breeze using your phone. Sometimes even an out of the box program to your Heli can benefit from a few tweaks.