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Core knowledge points 1. Improve endurance experience and connection speed 2. "Hey Siri" release your hands for easier operation 3. Support wireless charging, optional wireless charging box 4. Mechanical pressure sensing technology is used. Earphone pressure sensing technology is different from touch technology. Users often misoperate when touching, and mechanical pressure sensing technology just solves this problem. Only when the lower handle of earphone is pressed can there be operation action, which greatly improves the user experience