GSM Pen SIM Nano Card with Hidden In Ear wireless 218 earpiece Earbud spy Kit New items , new design .. the battery has changed into 550 mah Calling time 3.5hrs Package/List of Accessories: 1 x GSM Pen 1 x USB charger cable 1 x Original Maxell 337 battery which work up to 8 hours 1 x Earpice 218 PRODUCT DESCRIPTION Once insert a GSM SIM card and turn on the power, it will automatically pick-up calls from any mobile phone or telephone. Two way covert communication via mobile phone networks Optimized inductive coil creates strong power for earpiece IMEI Unique New GSM Box No problem in any country(Can write IMEI for you for India and Turkey) 3.5 hours talking time, or 48 hours Standby tim Induction distance to earpiece 30-80 cm HOW DOES GSM Pen WORKS? The new developed GSM Pen has a buildin dual band GSM module that works in both of Four Band mobile phone networks. Once insert a GSM SIM card and turn on the power, it will automatically pickup calls from any mobile phone or telephone. The powerful inductive coil will creat strong signals to drive earpieces within 40-60cm distance. One pc 35db top sensitive microphone ensures your partner hear the whisper voices, even the GSM Pen is hidden under the clothes. GSM Pen has a builtin rechargeable 500mAh battery. supports more than 3.5 hours talking time, or 8 hours Standby time