This is the ultimate in covert room surveillance. Simply insert any type of sim card as you would in an ordinary mobile phone and place the device in the target area. You can now call the device using a telephone from anywhere you like, the device will automatically activate allowing you to hear all conversations up to 40 feet away from the device with crystal clarity.
Open to all networks, accepts any sim card in any country
Can be monitored from any country in the world
Really simple to setup and use
Up to 10 day's standby
Fully guaranteed
Immediate shipping
Frequency: GSM 900 1800
High gain microphone
Up to 7 hours continuous usage
All GSM SIM card compatible
Microphone range: up to 40 feet
Receive sensitivity: -+ 10k
Working temp: -35~50 degrees C
Responding frequency: 1.2k~800khz
Power: Built-in rechargeable battery
Charger: Via mains power 100v - 240v ac or with pc USB lead
Stand-by time: Up to 7 days
Dimension: 7 x 4.4 x 1.8 cm
you can order is from China Electronic Wholesale
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