The four product lines losing software support in the spring are the original Zone Players (later sold under the names Connect and Connect: Amp); the very first Play:5 Sonos speaker; the CR200, a physical controller that preceded smartphone-app control; and the Sonos Bridge, which was used to wirelessly connect Sonos speakers together before that ability was moved into the speakers themselves.
A loudspeaker (commonly referred to as a speaker or speaker driver) is an electroacoustic transducer[1] that converts an electrical audio signal into a corresponding sound.[2] A speaker system, also often simply referred to as a speaker or loudspeaker, comprises one or more such speaker drivers, an enclosure, and electrical connections possibly including a crossover network. The speaker driver can be viewed as a linear motor attached to a diaphragm which couples that motor's movement to motion of air, that is, sound. An audio signal, typically from a microphone, recording, or radio broadcast, is amplified electronically to a power level capable of driving that motor in order to reproduce the sound corresponding to the original unamplified electronic signal. This is thus the opposite function to the microphone; indeed the dynamic speaker driver, by far the most common type, is a linear motor in the same basic configuration as the dynamic microphone which uses such a motor in reverse, as a generator.
The next phase of the law, Section 316.306, took effect on October 1, 2019. This phase permitted law enforcement to pull over and issue warnings to drivers who were observed holding a wireless device in a designated school zone, school crossing or active work zone.