Anker Soundcore Liberty 4 NC Wireless Earbuds Ultra Noise Cancelling Wireless Charging Multipoint Connection Ambient Sound Mode Up to 50 Hours

Ultra Noise Cancelling 3.0: The earphones not only detect and eliminate external noise, but also instantly measure the shape of your ear to eliminate noise that was previously missed, providing personalized noise cancellation. Further upgraded basic performance: The inclusion of a high-sensitivity sensor, a large-diameter driver, and a chamber with enhanced sound insulation has boosted the basic performance. It can now effectively cancel out a wider variety of noises. Up to 50 hours of long playback: The earbuds themselves can play music for up to 10 hours on a full charge, and with the included charging case, you can enjoy up to 50 hours of music playback. A 10-minute charge provides approximately 4 hours of music playback. Functionality ideal for everyday use: With features such as multipoint connectivity that allows simultaneous connection to two devices like smartphones and PCs, clear calls powered by six microphones and AI, and IPX4 water resistance, it can be used in a variety of situations, including online meetings, studying, and exercise. Package contents: Main unit, charging case, ear tips (5 types), USB-C & USB-A cable, safety manual, quick start guide, certified product (frequency band: 2.40-2.48GHz) /