The HA-A3T features a clean, simple, and lightweight design that offers the comfort and open feel that make the earbud style so popular. Touch sensor controls eliminate the discomfort associated with using earbud-mounted buttons. For further convenience, the earbuds automatically power on and connect when removed from the case, and power off when returned to the case. The built-in battery and charging case provide up to 22 hours of playback. It also includes a hands-free microphone, and the earbuds are rain-proof with an IPX4 rating. Enjoy easy operation with touch control that does not burden the ears. Experience high-quality sound reproduction with a neodymium magnet (using an 11mm driver) for a comfortable, open-type True Wireless experience. The simple design and colors suit any age, fashion, and occasion. Benefit from easy operation and auto on/off & connect/stable wireless connection (BT 5.1). Enjoy long playback time of up to approximately 22 hours with the built-in battery and charging case. The earbuds are waterproof rated IPX4, resistant to sweat and rain. They support single ear use (either left or right ears) and feature a microphone for teleworking and hands-free calling. Operations such as activating the voice assistant function can be done on the earphone itself.