Product Description:<br />(1) Make a call to the audio device and you can instantly listen in to conversations! The built-in microphone works up to a 7 meter radius so set this bug up wherever you want!<br />(2) Allows the spy audio device to call you when it hears people talking! This feature makes it much more advanced than other GSM audio bugs on the market today.<br />Hot spots:<br />Hidden Audio Spy Gadget<br />Auto Dialing option<br />Tri-Band GSM Audio Spy Device<br />Specification:<br />Primary Function: Tri-band GSM Two-Way Audio Spy Device<br />Materials: Molded Plastic<br />Color: Black<br />GSM Frequency Compatibility: Tri-band (850MHz900MHz 1800MHz 1900MHz)<br />Microphone Range: 5-7 meter radius<br />Power: Built In 200 mAh Rechargeable Li-ion Battery<br />Working Time: 5 hours<br />Voice Control On: 3-5 days<br />Voice Control Off: 12-15 days<br />Dimensions: 4.3x 3.2 x 1.4(cm)<br />Plug: EU<br />Package Included:<br />1x Two-Way Audio Spy Device<br />1x USB Cable<br />1x Power Charger (110-220V)<br />1x User Manual(Chinese and English)<br />NOTE:As the effect varies from monitor to monitor there is irrevocable slightly difference in colors between the color showed on your monitor and the real one So if dear you can not accept this very little difference<br /> be cautious before you making the orders.thanks for understanding.