Product features
1. algorithm-level noise and echo cancellation based on AI voice technology, effectively filtering environmental noise and making the toll collector's voice clearer for the monitoring center;
2. 20% loudspeaker volume increase, toll collectors can easily talk even in noisy environment inside the booth;
3. with dual call keys (can call to the local duty room and remote monitoring center), full duplex intercom;
4. with built-in speaker and microphone bar for hands-free calling and receiving announcements
5. with audio output port and microphone input port for external headset connection;
6. with an Ethernet port to access, across network segments and routes;
7. network communication protocols TCP, UDP, ARP, ICMP, IGMP
8. network chip rate 10/100Mbps
9. audio encoding MP2/MP3/PCM/ADPCM
10. audio sampling 8kHz～22.050kHz, 16bit
11. transmission bit rate 16kbps-352kbps
12. signal-to-noise ratio ≥90dB
13. frequency response 20Hz-16KHz
14. operating temperature, humidity -10 ℃ ~ 65 ℃, 10 ~ 90%
15 functional component interface 1 RJ45, 1 short-circuit input, 1 short-circuit output, 1 headphone output, 1 microphone input
