JBL Flip 3 vs JBL Flip 4

A speaker driver is an individual transducer that converts electrical energy to sound waves. More drivers may result in better sound quality.

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There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.

The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.

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Device is protected with extra seals to prevent failures due to any kind of weather.

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.

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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.

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.

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Audio output power is based on the number of speakers and their power in watts. High audio output power results in loud, clear sounds.

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A passive radiator looks like a normal driver (speaker) from the front, but on the backside all of its 'guts' are removed. Passive radiators allow woofers to produce deep tones that otherwise may not have been possible. They can have the same sonic output as larger speaker cabinets, but in a much smaller size.

These microphones are designed to filter out background noise from the desired sound. Especially useful in noisy environments.

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An indicator shows you when the device has low battery.

The battery can be recharged and used over again.

The time it takes to fully charge the battery.

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An auxiliary input allows you to play other audio sources by connecting them through a simple audio connection like a 3.5mm jack, i.e for MP3 or portable DVD/CD player.

With a standard mini jack socket, you can use the device with most headphones.

With more USB ports, you are able to connect more devices.

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Multipoint allows you to link to more Bluetooth devices and switch between them. For example you can easily switch calls from one device to another without having to manually disconnect and reconnect.

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Wireless devices allow users more freedom of movement.