Features:<br>No flashing light, sounds or vibration when activated by your cell phone<br>Compatible with all GSM SIM card<br>Frequency Band: GSM 850/900/1800/1900MHz<br>Microphone Built-in<br>Super-sensitive audio surveillance<br>Sound Trigger Call Back Function<br>Rechargeable polymer li-ion battery built-in<br>Powered by battery or car DC power<br>Parameters:<br>Net Weight:28g<br>Product Size:83x27x25 mm<br>Packing Size:105x55x45mm<br>Gross Weight:71g<br>How to use it?<br>Open the case, insert a sim card to the slot, close the case, the bug will auto switch on. You dial the sim card number, you will hear the live audio around the bug.<br>You can configure the realtime target location, auto call back functions by send a SMS to the SIM card number as per the manual's detail instruction.<br>Note: you must enable the GPRS function of the sim card you inserted in to ensure all functions can be realized. <br /></p> <br /></p><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-1-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-2-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-3-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-4-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-5-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-6-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-7-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-8-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-9-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="https://contestimg.wish.com/api/webimage/56c29fec87b94f16986f6320-10-original.jpg" alt=""width="800" noproxy><p style="text-align: center;"><img src="http://contestimg.wish.com/api/image/rating?name=c0e6070c8a6411e6bf34062a6377b9f1.jp" alt=""width="800" noproxy>