СК-120 Телефон Помощь бипер

Use the advanced microcomputer and micro power chip,small size and beautiful appearanceDirectly connect with telephone line.No need to connect power.Can be set to receive the signal of remote controller or wireless detector.Built-in mike and external speaker can locally monitor and speak.Can use call key on the host or wireless button,wireless switch and remote controller to send mayday call.Can store 8 groups telephone number.Can be online with SHIKE 120 network center.With testing function,can be online with network center to test anytime.