GSM Überwachungsgerät

GSM surveillance device Detailed Product Description Frequency: 900/1800/1900 Incepting sensitivity: -75dbStanding-by consumption: 20mAh calling consumption: 200mAh Size:38*35*10mm Weight:20g Features: Super mini size. It is almost less than credit card It works upon 900/1800/1900 tri-band GSM system with SIM card. There is no distance limit for surveillance. Stand-by time is about 1 week With Li-battery. Voice-controlling & call back. send Text message and Alert function It can be put in any kinds of disguised product, and used as disguised monitor.