SEMK-40 Microphone of a wireless connection
The SEMK-40 is the only micrófono of contact that transmits wirelessly. Only with this function. Ideal for covert surveillance. Spans up to 40 cm of wall.

SEMK-40 Microphone of a wireless connection
The SEMK-40 is the only microphone contact that works by radio frequency. You just have to stick it to the wall and with a receiver you can listen to the conversation from a distance.
The SEMK-40 is a microphone professional that allows you to pass through walls up to 40 cm thick. Only with function of radio frequency.
Features:
- Only one that works by radio frequency
- Spans up to 40 cm (depending on the type of wall)
- Microphone professional totally discreet.
- Transmitted by UHF
- Very Easy to use
- Unique codes between the transmitter and radio control
Note: All of the microphones in UHF need a receiver (not included) to be able to listen to the audio. Check out the tech specs to see the receivers compatible.
Attention: This microphone is not water-resistant. Please, do not submerge or immerse the device.