Patent attributes
Systems are disclosed for producing audio that is audible outside a collection box for delivery items, the collection box including a user-operated door. The system can include a trigger device, a sensor, an audio transducer that generates the produced audio from an audio signal, an audio chip and one or more processors. The sensor can detect the trigger device when the trigger device is in close proximity, and the one or more processors can be operably connected to the sensor and to the audio chip, where the one or more processors signal the audio chip to send the audio signal to the audio transducer. The one or more processors can further receive and record a status signal indicating that the door is in an opened state. Systems can further include an environmental sensor that measures environmental information.