- Touch control and voice function: Control via two touchpads on both sides of the glasses frame or use the built in voice function for hands free operation; supports hands free calling. - Open ear design: Open ear speakers let you listen to music while staying aware of your surroundings; ideal for outdoor activities such as cycling, running, driving, fishing, basketball, shopping, and more. - Voice assistant and calls: Bluetooth sunglasses with open ear speakers deliver clear music and dialogue. Simply touch the smart glasses to answer calls, or use the device's voice assistant to keep your hands free. - Waterproof and dustproof: Built to resist water and dust for reliable outdoor use. - Compatibility and connectivity: Stable compatibility and reliable Bluetooth connectivity. - Battery life and charging: Built in rechargeable lithium battery with high capacity; full charge in about 1.5 hours, delivering approximately 4–6 hours of continuous music playback. Suitable for cycling, running, driving, fishing, basketball, and other activities.