Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.
The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
An amplifier is integrated into the device. An audio amplifier takes a small signal and makes it bigger without making any other changes in it which results in better sound, so any sound source can be connected to speakers.
A passive radiator is a type of driver (speaker) that doesn't have a voice coil and a magnet. The sound vibrations produced by a passive radiator depend on its mass and the size of its enclosure. It is usually used in combination with a woofer to produce deep bass tones.
Audio output power is based on the number of speakers and their power in watts. High audio output power results in loud, clear sounds.
The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.