As German military technology is adopted,the product has the excellent performance: voice-activated function,small size,clear voice,long standby time,easy installation,simple operation,stable performance,etc

Details:
1. Body Size: 5x4x2cm
2. Two operating mode: munual and sound-activated
3. Able to dial back automatically the mobile number for monitoring when under sound-activated mode
2. GSM Band: 900/1800/1900MHz, can be applied in most countries(expect Japan and Korea)
3. Standby Time: 3-5 days on sound-activated mode; Up to 15 days on maunal mode
4. Incompatible with CMDA,3G sim card
5. No noise while starting and working
6. Able to catch the voice of radius of 5m   
7. Flashlight function
8. Black or Silver color available