SWM-CX990 Wireless Voice Transmission, MP3 Player & Recording Function, Support TF Card

1) Support TF Card CX-990 is a narrow pulse nanosecond transmitting a wireless signal technology is ideal for high-speed, short-distance wireless personal communications

2) CX-990 has a very strong ability of anti-multipath interference, especially suitable for indoor complex environment to ensure high sensitivity pickup to provide users with highly reliable wireless transmission environment

3) Low-power, low-cost, high reliability.

4) Features: Smart Sound Monitor function, a radius of 1000 meters listener pickup 100 square meters