N9 2 Mic Automatic Monitoring Listening Devices in Acoustic Alarm Mini Elderly and Children Caring Device Voice System

This product is small in size and easy to carry. It will not be a burden for the elderly or children, and will always protect their safety. It will dial your telephone number or mobile number if there is voice higher than 45bD in 4 meters. Features: Excellent stand by and working time. Prominent sound quality makes it more reliable. Built in 2 mic, can be heard clearly. Automatic monitoring function: as long as it exceeds 45 decibels in 4 meters, it will automatically call back. Super mini size, easy for carrying. Specifications: Card compatible: GSM / SIM Microphone Range (meter): 5-7 Radius Receive sensitivity: about 10K GPRS Working temp: -40 to 50¡æ Responding frequency: 1.2K-800Khz Stand-by time: 3-5 days (without voice control), 10-15 days (without voice control) Work frequency: 850MHz, 900MHz, 1800MHz, 1900MHz (please check if it can work with your local system format before purchasing) Battery: 1 * 3.7V, 300mAh Li-ion battery Item size: 35 * 20 * 14mm / 1.4 * 0.8 * 0.6in Item