Creating a hidden radio transmitter FM

The transmitter size is very small and has good strength

In making this particular piece of unused transmitter and the number of parts is not high, when you need to build this circuit is about 3 hours

Anyone who have little information about the electronics, such as solder and get acquainted with the simple parts, electronic comments could easily began to build the circuit.

for the receiver can use of mobile phone radio that sensitive and you from the recipient of it is easy, but if the mobile phone was not available can from a recipient of small (use radio)