... than 4 watts. 2.Default standard 8G TF card, support for G729 and mp3 compression format, saving storage space, sustainable recorded ... , and the system is embedded linux software, safe and reliable, anti-virus. 10. When the system disk will be full, the system ... line. 12. Telephone module telephone lines against lightning strikes and anti-short, safe, reliable, and durable. 13. Support online software ...