Main Features:- Operating frequency: 850MHz / 900MHz / 1800MHz / 1900MHz ( quad band ).
- Excellent stand by and working time up to 3 - 5 days ( if the acoustic alarm function off， standby time: 12-15 days).
- Start-up:Opening the back cover and putting the SIM card， then it automatically starts. And the indicator lights will last for 3 seconds， after the lights go out please close the cover and you can start using.
- Number setting: Use telephone or mobile to dial the SIM card which included in the alarm system， once you hear 3 seconds voice please hang up immediately， then the system will set it as default alarm status， and it will automatically dial your telephone number or mobile number if there is voice higher than 45dB in 4 meters.
- Monitoring: After successful start-up， you can use any of communication tools to dial your SIM card number in the alarm system， once it is connected， you can hear nearby voice within 10 meters in a few seconds.
- Remote control setting: Send message 1111 to the SIM card in the alarm system can turn on the acoustic alarm function， and send message 0000 to SIM can turn off it.
- Battery indicator lights change: When charging， the red light and the yellow light alternately lit， when full， the red light is lighting， yellow light is off.
- Microphone range ( meter ): 5 - 7 ( radius )， 4 levels.
- Working Temp: -40 - 50 Deg.C.
- Compatible with all GSM / SIM cards. Package weight: 0.113 kg
Product Size(L x W x H): 4.50 x 3.20 x 1.50 cm / 1.77 x 1.26 x 0.59 inches
Package Size(L x W x H): 12.50 x 10.50 x 3.00 cm / 4.92 x 4.13 x 1.18 inches Package Contents: 1 x SIM N9 Wireless GSM Voice Activated Personal Auto Dialer Mini Monitor with Real-time Alarm， 1 x USB Cable， 1 x Bilingual User Manual in English and Chinese