The Soundcore Liberty 4 NC wireless noise-cancelling headphones in Light Blue offer advanced audio performance with adaptive noise cancellation technology. These in-ear headphones feature Adaptive ANC 2.0, which automatically adjusts to the shape of your ear canal and external environmental conditions, providing up to 98.5% noise reduction for quiet listening experiences. The 11 mm custom drivers deliver high-resolution wireless audio with three times more detail than standard Bluetooth transmission through LDAC technology. The battery life offers 10 hours of uninterrupted playback with noise cancellation activated, extending to a total of 50 hours with the charging case. The HearID 2.0 sound personalization system creates individual audio profiles based on personal hearing sensitivity, while 22 preset EQ options provide additional sound customization. Connectivity features include Bluetooth 5.3 with multi-point pairing capability, automatic play/pause functionality when removing the headphones, and quick pairing with Android devices. Made from durable plastic materials with an IPX4 water resistance rating, these headphones offer protection against sweat and light rain. The unisex design is suitable for adult users with universally fitting ear tips for comfortable long-term wear. The compact charging case measures approximately 6.5 cm × 4.5 cm × 3 cm and weighs 45 grams, while each headphone weighs 5.8 grams for lightweight comfort. These wireless headphones provide reliable performance for travel, commuting, and daily use with their combination of advanced noise cancellation, high-quality audio playback, and extended battery life.