IP ratings is the rating of protection given by a casing, against solids and water. The letters 'IP' are followed by two values The first value refers to protection against solids such as dust, while the second refers to protection against liquids (sweat).

Having a value of IPX4, the Bose SoundSport Free's rating is read as, the first value of X denotes that no data available to specify a protection rating, and the second value of 4 means that they can withstand low pressure spray similar to that of a shower head when tilted at 180° for 10 minutes. Bose SoundSport Free have a weight of 18.2g . We consider a lower weight better for the reason that lighter devices are easier to move with.

True wireless devices have no wires linking any part of the device together, Bose SoundSport Free are true wireless for this matter since they have no cables. This is an important difference since wireless earbuds have wires linking the 2 earbuds together. Bose SoundSport Free have wingtips, these are reserved for workout earbuds and are usually an optional add-on to each silicone ear tip for a more secure fit.

Bose SoundSport Free are resistant to sweat Bose SoundSport Free have stereo speakers, what this means is that Bose SoundSport Free's speakers deliver sound from independent channels on both left and right sides, this creates a richer sound and a better listening experience. The Bose SoundSport Free stay well in place, this creates a sound seal that reduces your environment sounds and also prevents the earbuds music from leaking out at the same. Bose SoundSport Free driver unit is 10mm in diameter, bigger drivers are more powerful, and can produce better bass.

The driver unit is basically a mini speaker that makes sound in the device, its size corellates with the loudness of the earbuds. Bose SoundSport Free's lowest frequency is at 20Hz, low-frequency response measures if and how well a particular audio device generates low recognizable frequencies and if it makes any changes to the signal on its way through. Bose SoundSport Free's highest frequency is at 20,000Hz, high-frequency response indicates how well an audio component makes high recognizable frequencies and if it makes any changes to the signal on its way through.

The sound pressure level, is the pressure level of sound, in decibels, dB, Bose SoundSport Free's measurement is 98dB/mW. Devices with a higher sound pressure level are generally louder when supplied with any given audio source. The Bose SoundSport Free's battery life is 5 hours, these last less than 5 hours of listening which is considered average before recharge.

A device's battery life is usually given by the manufacturer, and with more battery hours, you get to use it for longer and have to charge the device less often. The battery life of the charging case is given by the manufacturer, and the Bose SoundSport Free's case has a charge of 10 hours. A charging case with more battery hours enables you to recharge your earbuds on the go many times before recharging the case itself.

It requires 2 hours to fully charge the Bose SoundSport Free's battery. It is highly adivsable to charge fully the battery before using the earbuds for the first time. The Bose SoundSport Free have a battery level indicator, an indicator alerts you when the device has a low battery.

Its lights display the charging state of your earbuds and charging case. The Bose SoundSport Free have Bluetooth version of 4.1, Bluetooth is a wireless technology standard that enables data transfers between devices placed in range, using short-wavelength, ultra-high frequency radio waves. Bose SoundSport Free have a 9.1meters distance connecting via Bluetooth.

The Bose SoundSport Free have 2 microphones. If lost in a room, or can't be found in your bag, the Bose SoundSport Free have a find earbuds feature. The Bose SoundSport Free support fast charging.

Most often, technologies like Qualcomm’s Quick Charge, are used to reduce the time it takes to charge a device. Bose SoundSport Free have a mute function, they support the feature to mute/unmute a conversation directly from the device. With the Bose SoundSport Free, so you can easily access the volume control, pause, play, mute, etc whichever features are supported on the earbuds.

Bose SoundSport Free have voice prompts. With voice prompts, you receive information through audio messages, say if there is a problem with the connection. Bose SoundSport Free come with a special pouch.

Carrying earphones without a case, or placing them inside your pockets without a cover can easily put them at risk of getting damaged.