Features: 1. USB Rechargeable, no need to replace the battery, environmental-friendly, with a long standby time. 2. Built-in intelligent chip, clear and noise-canceling, no worry about the noisy environment. 3. Strong shell, anti falling and durable, it still can be used normally even if it fell from two meters high. 4. 360° adjustable, suitable for left or right ear to wear. 5. Ergonomic design, soft and flexible, can help you a lot in daily life. .
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