Design
Fit
The fit of the earbuds.
- Fresh 'n Rebel Twins 2 in_ear
- Urbanista Copenhagen earbud
Weight
We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
- Fresh 'n Rebel Twins 2 8g
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- Urbanista Copenhagen null
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Sound quality
Has passive noise reduction
The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Driver unit size
The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.
- Fresh 'n Rebel Twins 2 null
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- Urbanista Copenhagen 12mm
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Lowest frequency
The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.
- Fresh 'n Rebel Twins 2 null
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- Urbanista Copenhagen 20Hz
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Highest frequency
The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.
- Fresh 'n Rebel Twins 2 null
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- Urbanista Copenhagen 20000Hz
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Sound pressure level
Devices with a higher sound pressure level are generally louder when supplied with any given audio source.
- Fresh 'n Rebel Twins 2 null
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- Urbanista Copenhagen 115dB/mW
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Impedance
Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.
- Fresh 'n Rebel Twins 2 null
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- Urbanista Copenhagen 32 Ohms
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Power
Battery life
The device's battery life (when in use) as given by the manufacturer. With a longer battery life you have to charge the device less often.
- Fresh 'n Rebel Twins 2 4h
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- Urbanista Copenhagen 8h
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Battery life of charging case
The battery life of the charging case as given by the manufacturer. A charging case with a longer battery life allows you to recharge your headphones on the go multiple times before having to recharge the case itself.
- Fresh 'n Rebel Twins 2 16h
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- Urbanista Copenhagen 24h
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Charge time
The time it takes to fully charge the battery.
- Fresh 'n Rebel Twins 2 1h
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- Urbanista Copenhagen null
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Has wireless charging
It supports a wireless charging standard such as Qi. To charge the device, you simply put it down on a compatible charging pad.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Connectivity
Bluetooth version
Bluetooth is a wireless technology standard that allows data transfers between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves. Newer versions provide faster data transfers.
- Fresh 'n Rebel Twins 2 null
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- Urbanista Copenhagen 5.2
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Has LDAC
LDAC is a codec developed by Sony for Bluetooth audio. It is capable of a very high bitrate of 990kbps, which provides high resolution audio. It can also automatically adjust to a lower bitrate of 330kbps or 660kbps to increase stability.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Has aptX Adaptive
aptx Adaptive is an audio codec for Bluetooth devices that is developed by Qualcomm. It has a variable bit rate (between 279kbps and 420kbps), which means it can adjust the bit rate for different scenarios, such as listening to HD audio or reducing interference from other devices.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Has aptX Low Latency
aptX Low Latency is a codec developed by Qualcomm. It uses Bluetooth 5.0 technology to provide low latency audio (around 40ms), which is useful when you want to avoid audio lag (e.g. when playing games).
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Has aptX HD
aptX HD is an audio codec for Bluetooth devices that is developed by Qualcomm. It supports high quality 24-bit audio (at a bit rate of 576kbps).
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Has AAC
AAC is a codec that is used for Bluetooth audio. It supports 24-bit audio at 250kbps. Because it uses psychoacoustic modeling, it can provide better results than other codecs at a similar bit rate.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Features
Has ambient sound mode
Ambient sound mode uses microphones to pass through ambient noises so that they can still be heard. It’s useful when you want to listen to music but also be aware of what’s happening around you, for example when you’re jogging but still want to be able to hear traffic.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Has in/on-ear detection
Sensors can detect when they are removed from your ears so that the music is paused, saving battery life.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Has find earbuds feature
You can use the app to play a sound from your earbuds to help you locate them.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Supports fast charging
Fast charging technologies, like Qualcomm’s Quick Charge or MediaTek’s Pump Express, are used to reduce the time it takes to charge a device. For example, with Quick Charge 3.0, the battery can be charged to 50% in just 30 minutes.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Warranty period
When covered under the manufacturer’s warranty it is possible to get a replacement in the case of a malfunction. Note: This may vary by region.
- Fresh 'n Rebel Twins 2 null
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- Urbanista Copenhagen 1 years
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Has an in-line control panel
There is a control panel on the cable, so you can easily operate the device without having to interact with it.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Has a temperature sensor
With a temperature sensor you can monitor changes in temperature to measure your exertion levels and avoid hyperthermia.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen
Microphone
Number of microphones
More microphones result in better sound quality and enable the device to filter out background noise.
- Fresh 'n Rebel Twins 2 2
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- Urbanista Copenhagen 4
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Has a noise-canceling microphone
These microphones are designed to filter out background noise from the desired sound. Especially useful in noisy environments.
- Fresh 'n Rebel Twins 2
- Urbanista Copenhagen