Huawei FreeBuds 7 Yue Zhang headphones deserves special mention — the self-developed third-generation audio AI chip plus dual-dimensional improvements have pushed semi-in-ear noise cancellation to a new level. ~ Semi-in-ear Active Noise Cancellation | Comfortable, Secure, and Stylish | Premium Audio Quality for an Immersive, Authentic Sound Experience ~ Support Android and iOS (Whatsapp and Wechat message notifications) Bluetooth version: 6.0 Frequency response range: 14 Hz~48 kHz Sound unit: High-fidelity full-range unit Charging time (wired charging with empty case): 60 minutes Maximum playtime (headphones + charging case) with ANC off: 42 hours Accessories: Earbuds, Charging case T0028 ~ • 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