CX-990 Wireless Voice Transmission monitoring,wireless voice Transmission Audio Gadgets MP3 Player & Recording Function

Specifications

CX-990 Wireless Voice Transmission, MP3 Player & Recording Function, 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, 48 hours long standby, support work while charging, support external audio listening, wireless audio monitoring, intelligent recording monitor 
5) Charging power: DC 5V 
6) Headset: YES 
7) Frequency: 400MHz 
8) Voice: Decibel 60 
9) The transmitting and receiving distance: 500-1000m 
10) To accept batteries work time: 48 hours 
11) Transmitter battery work time: 24 hours 
12) Battery type: High capacity polymer battery 
13) TF Card: Max. 32G