... video door bell, 2.4 G Digital door phone intercom TA-999Function Feature 1).Transmission distance: 300m (free lane)2).World ... 20”PSets/40”PSets/40”HSize(cm)/box0.05CBM1.52kg 30.5*19*9.7Production Info.MOQDelivery TimeSets/monthMaterial48sets3-25days10,000Plastic ... + stainless steel Accessory screw, rechargeable battery, manual, power adapter TA-999 Most Popular Waterproof Wireless Door Phone