Shokz OpenDots Air, stylish open-ear earbuds for minimal ear presence and everyday styling with comfortable all-day wear. ~ Support Android and iOS (Whatsapp and Wechat message notifications) Bluetooth connection: Bluetooth 6.1 Wireless range: 10 meters Battery life: Noise Reduction Enabled 9 hours (earphones); 36 hours (with charging case) Waterproof & dusproof standard: IP55 (earphone body) Weight: 6.3±0.2g (earphone), 49.9±2.4g (Total) E210-ST-BK-US E210-ST-PR-US ~ • Return and refund are not accept. • Free shipping to HK/Macau when spending over $500 onwards • China area shipping fee $130 + Local SF Express • Two business day shipping. Sent via SF express / JD Logistics. • Exchange of defective units purchased in 7 days ~ *Photo for reference only