Bose Ultra Open Earbuds White Smoke (881046-0020) are open-ear True Wireless earbuds designed for everyday use. They feature Bluetooth 5.3 for stable and fast connectivity. Their open design allows you to stay aware of your surroundings while listening to music, enhanced by Ambient (Transparency) mode for safer use. With IPX4 water resistance, they are protected against splashes. The built-in microphone ensures clear call quality. Battery life offers up to 7 hours (up to 4 hours with Immersive Audio) and up to 25 hours total with the charging case.