World Smallest Voice Transmitter

World's smallest wireless transmitter. Highly sensitive transmit even a whisper from 35 feet away, neatly housed in a strong black plastic box, has built in rechargeable batteries. Place a sim card in it. Each unit will have its own code. For example 12345. Before first time use you just need to program the unit to let the unit know that you are its master. You program by simply send a text message to the sim card number in the unit for example send 12345 + Your cell phone number to the unit. Now the unit will know you are the master. Now just place it any where and call in at any time to listen to the surrounding sounds via your cell phone. No rings, no beeps, no clicks sounds to alarm the target. Get any secret information. This unit has no distance limitation. One charge last a long time 48 hours standby time 7 hours usage time. (charger included with purchase) Dimension approx 1.2cmx2.8cm3.8cm or 0.46 x 1 x 1.5 inch