Sim Card Audio Bug Insert a GSM SIM card into the slot and put the audio bug in a hidden area, then simply dial the sim card's number to monitor the desired area, you will hear the sound clearly around the audio bug. When turned on a red light will flash for one second, it means the device is ready, put the device in the desired place you want to monitor. Then just dial the sim card number. You will be able to monitor and hear audio 5-15m around the sim card audio bug. Whats Included 1 - Sim Card Audio Bug 1 - Charger 1 - USB Cable Specs Super-sensitive audio surveillance. Embed four condense microphone. 24 hours non-stop power supply. All GSM SIM card compatible. Frequency:900, 1800, 1900 Power Supply:24 hours Non-stop Card Compatible:GSM / SIM Microphone Range (Meter):5~7(Radius), 4 levels Receive Sensitivity:-+10K Working Temp:-40~50'C Responding Frequency:1.2K~800Khz Stand-by Time:7 days Working Time:4 hours
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