Quad-Band GSM Card now is powered by new 4 Watt audio amplifier and now offers more powerful output audio signals. GSM Module allows you to use device independently without mobile phone. Just insert the SIM Card in device. The most popular Spy Invisible Skin Earpiece. After use it you can enjoy advantages of stable micro speaker, clear audio voice output. It is an earpiece with skin body and black end. Earpiece have build-in mini receiver (speaker) and also have high quality and sensitive inductive coil.
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