Anker Liberty 4 NC Wireless Earbuds, Black

The Anker Liberty 4 NC are true wireless earbuds built around 11mm dynamic drivers, with a frequency response range of 20 Hz to 40,000 Hz. Audio is transmitted via a Bluetooth 5.3 connection, which includes support for the LDAC codec for higher-fidelity sound streaming from compatible source devices. Their in-ear, canal-style design contributes to passive noise isolation, and the package includes four pairs of eartips to help users achieve a secure and comfortable fit. The closed-back acoustic system is engineered to contain audio and further isolate the listener from external distractions.

These earbuds incorporate an adaptive active noise-canceling system that automatically adjusts its intensity based on ambient sound levels. For voice communications, a six-microphone array with digital signal processing is utilized to reduce background noise during calls. The combined battery life from the earbuds and charging case provides up to 50 hours of playback. The case is charged via a USB-C port and supports a fast-charging function. An IPX4 rating signifies resistance to water splashes, while integrated touch controls allow for management of media and calls.

• Wireless connectivity via Bluetooth 5.3
• Supports LDAC, A2DP, and HFP Bluetooth profiles
• Omni-directional microphone pickup pattern
• Battery case recharges fully in 3 hours
• Configuration available through dedicated iOS and Android applications
• Plastic composite body with a 9 g weight per earbud
• Includes charging case, USB-C cable, and four sets of eartips