Features:This a audio bug device that listen to the surrounding sounds through a common GSM SIM card. It comes with the most ordinary look and function of a common mouse yet it comes with covert spy feature.You can dial the SIM card number and the device will automatically get activated to do the bugging， and as long as the mouse is connected with the PC it can work continuously without the trouble of power-off. And its built in litium battery can work continuously for 2 hours without connecting to a computer.Specification:Open back cover of the mouse， insert a GSM SIM card.When the red light indicator turns on it means the device can work normally.After 5 seconds when boot test process is finished， you can dial the SIM number and monitor the soundds around it.Charging Method: no need of extra charging， as it can get charged as long as the PC is started， its built in litium battery can work continuously for 2 hours without the power of the computerPackage Included:1x New SPY GSM SIM Card Ear Bug Mini USB PC Mouse Style Audio Listening Device