Wireless Hidden Pen IP Camera Wireless Hidden Pen IP Camera1.Wireless hidden IP camera is more convenient and safe than traditional big & showy one. ... offices,shops,pubs and restaurants, buildings, warehouses,etc.3. Mini camera hides into a super thin working pen (core is replaceable ... 6. Built-in antenna and rechargeable Li-battery in portable camera pen;7. Super long continuous working time(1.5 hours ...