850/900/1800/1900MHz Voice Activated GSM Audio Monitor

GSM audio monitor support 850/900/1800/1900MHz, voice trigger, vibration trigger, voice sensitivity adjustable, power checking by SMS (X006)

Features:
GSM bug audio monitor listening device for audio monitor with voice-activated, vibration
Really quad GSM 850/900/1800/1900MHz Network
Voice detector distance: 10m
Voice sensitivity adjust by SMS: 20-500dB
Two ways to set master number
Battery power checking by SMS
Size: 4.1*3.1*1.2cm

Description:
GSM bug. Actually, it is a audio monitor device. You can insert a GSM SIM card into it, put it anywhere you want to listen. And then you can call it using another phone. You can hear the voice around it and others don't know you are listening.

Voice trigger function: When someone talk around it, it will call your mobile phone back automatically.

Vibration-trigger function: When there is vibration around it, it will call your mobile phone back automatically.