This FM transmitter is a miniature version of KIT18 using normal passive components. Components have been squashed together as much as possible while still allowing good access to the tuning capacitor. The PCB-etched inductor of KIT18 has been replaced by a small inductor. To reduce the size any more you would have to use surface mount components and a double sided PCB.
The product datasheet is available here to view
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.