Sennheiser SKM AVX-4 W/O CAPSULE Digital Handheld Transmitter with No Microphone Capsule (1.9 GHz)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