High technology device, the advanced SIM card audio spy-ear detector Comes with specially designed small casing, it doesn’t need external software or configuration, just put a valid SIM card into the SIM card slot, placing it at a inconspicuous location, you could listing to the sound of it's surrounding wherever and when you want to by making a phone call, it is the ideal SIM surveillance equipment you can’t miss.

Specification

Frequency: GSM900, 1800(Don't support GSM 850MHZ,1900MHZ,3G and CDMA network)Call back founction!!!
Built in four condense microphone
24 hours continuous usage.
All GSM SIM card compatible
Microphone range: 10~14 Meters (diameter), 4 direction
Receive sensitivity: -\+ 10K
Working temp: -40~50 degree C
Responding frequency: 1.2K~800Khz

Both EU charger and US charger type available

Payment Method We accept payment by Bank Transfer, Western Union and more. Shipping Method Orders will be shipped out within 1 to 2 Business days UPS/TNT/DHL/FedEx : about 3 to 5 Business days EMS: about 5 to 7 Business days Hong Kong Registered Post (air mail) : about 10 to 20 Business days Note: Holiday period, because some flight delays, please understand. We guarantee that , your tracking number can be check online within 2 to 3 Business days. 7 Days Satisfaction Guarantee You will have 7 days satisfaction guaranteed for all your purchases. This means that for whatever reason you are not satisfied with the item you purchase from us, you must contact us within 7 days from the date of receipt of the item. You may return the item to us and we will issue you a full refund of purchase price as credit slip so that you may choose another desirable product to you! No question asked!