The SKM AVX 4 Digital Handheld Transmitter with No Microphone Capsule from Sennheiser is a handheld transmitter for the SKM AVX 4 system and is fully self-configuring. It can be used when paired with a mic capsule and a receiver (both sold separately) to capture audio for video and speech applications.
The AVX system makes the setup of radio frequencies a thing of the past. It can match your camera's input sensitivity without having to adjust the audio level on the microphone. It features AES 256 encryption and does not require a license.