... ,High-resolution image 3, 2.2" TFT LCD doorbell peephole Peephole viewer,doorbell peephole TEC-PS601 Production Introduction 1. Digital electric peephole ... out the common peephole then install new product. It is wireless, beautiful and convenient. Specifications1. 2.2" TFT LCD 2.Dimension ... )*9.0(H)*3.0(D)cmPatent design: use peephole, wireless, very simple and safe.1. The operation is simple and ...