EarFun Air 2 NC: Features, ANC and battery life

The EarFun Air 2 NC wireless earbuds offer Bluetooth 5.3, hybrid active noise cancellation (ANC) up to 45 dB and Hi-Res Wireless Audio support via the LDAC codec. They also have a low-latency gaming mode, six microphones and a charging case that brings total battery life to up to 40 hours.

Key specifications

• Connectivity: Bluetooth 5.3, range up to 15 metres
• Audio: 11 mm drivers, LDAC and SBC codecs
• Noise cancellation: hybrid ANC up to 45 dB
• Calls: six microphones and AI-assisted noise filtering
• Gaming mode: latency under 55 ms
• Battery life: approximately 9 hours per earbud charge, up to 40 hours with the case
• Charging: USB-C and wireless charging
• Water resistance: IPX5

Range and battery life depend on how the earbuds are used. Obstacles and interference can shorten the connection range, while volume, ANC and LDAC use can affect battery life.

LDAC and Hi-Res Audio in practice

LDAC can transmit more audio data than SBC, at up to roughly three times the rate under certain settings. It may preserve more detail in a recording, but it does not make music louder by itself. Any audible difference also depends on the recording, source device and connection conditions.

To use LDAC, the device playing the audio must support the codec too. The earbuds also support SBC. The stated range of up to 15 metres does not guarantee the same transmission quality in every environment.

Active noise cancellation

Hybrid ANC can reduce surrounding noise by up to 45 dB. It can help when listening while travelling, at work or at home by reducing sounds that compete with music or speech. The system adapts to the shape of the user's ear.

The up-to-45 dB figure does not mean that every sound is reduced by the same amount. The effect depends on the type of noise and how well the earbuds fit.

Gaming and watching videos

Gaming mode offers latency under 55 milliseconds to reduce audio delay. This can be useful in games where sound accompanies on-screen action, as well as when watching videos where a delay between picture and sound can be distracting.

Perceived delay also depends on the source device and connection, so it cannot be guaranteed to be imperceptible in every situation.

Microphones and calls

Six microphones work with an AI algorithm to help filter background noise during calls. The processing is designed to reduce sounds such as wind, street noise and echo, making the user's voice easier for the other person to understand.

This can be useful for phone calls and online meetings. Its effectiveness depends on the environment, however, and it may not remove every distracting sound.

Battery life, charging and water resistance

The earbuds last approximately 9 hours on their own, with up to 40 hours in total when recharged using the case. The case can be charged via USB-C or wirelessly, giving users a choice depending on the charger available.

The earbuds' IPX5 rating means they are resistant to water jets, which is useful for sweat or rain. It does not mean they can withstand immersion, and the rating does not automatically apply to the charging case.

The EarFun Air 2 NC combine features for everyday listening, calls and gaming. When deciding whether they are right for you, consider LDAC support on your source device, how comfortably the earbuds fit and whether you will use ANC and gaming mode.