The application describes customized notifications based at least in part on device characteristics. For example, a client device may identify information for populating an audio tone list associated with an electronic device, wherein the information includes a type of electronic device, a name of the electronic device; and/or a setting of the electronic device. The client device may then display audio tones that are based at least in part on the information. While displaying the audio tones, the client device may receive input selecting at least one of the audio tones to be associated with the electronic device. The client device may then receive a message indicating that the electronic device detected an object. Based at least in part on the message, the client device may output sound represented by an audio tone of the at least one audio tone.