In-ear wireless headphones Anker Liberty 4 NC — Black, Bluetooth, USB-C charging

Anker Liberty 4 NC are in-ear wireless headphones in a black finish that combine compact fit, Bluetooth connectivity and USB-C charging. They include active noise cancellation to reduce ambient sounds and deliver immersive audio for everyday listening and commuting. The in-ear design provides a secure seal for improved bass response while remaining portable and simple to pair with phones and other Bluetooth-enabled devices.

Advantages

The headphones offer active noise cancellation that helps minimize background noise for clearer music and calls. Bluetooth wireless connectivity enables cable-free use across compatible devices, and USB-C charging supports fast and convenient recharging. The compact in-ear form factor and lightweight charging case make the set easy to carry, while the secure fit maintains stability during movement.

Suitable for

• Daily commuting and public transport listening
• Casual music listening at home or on the go
• Hands-free phone calls with Bluetooth-enabled smartphones
• Portable use during short workouts and walking

Key specifications

• Connectivity: Bluetooth wireless
• Wearing style: In-ear earbuds
• Colour: Black
• Charging interface: USB-C
• Active noise cancellation: Integrated ANC

How to use

Charge the case and earbuds using a USB-C cable until the indicators show full battery. Open the charging case to power on the earbuds and enable pairing mode; then select the device named by the earbuds in your phone’s Bluetooth settings. Insert each earbud into the ear canal and adjust for a comfortable, sealed fit to optimize sound and noise reduction. Use touch controls or the connected device to play, pause, skip tracks, adjust volume or answer calls. Return the earbuds to the case when not in use to recharge and power them off.

Recommendations

For best noise cancellation and audio performance, try different ear tip sizes to achieve a tight in-ear seal. Keep firmware updated where supported and charge via the USB-C port to maintain battery health. Avoid exposing the earbuds and case to prolonged moisture or extreme temperatures.