Feature: 1. USB Charging and Long Battery Life: USB charging interface with magnetic effect for stable charging. The glasses can be charged for 6 hours of continuous calls, 8 hours of continuous music playback, and 1 week of standby time. 2. Clear Calls: With advanced chip and speaker , the Bluetooth glasses effectively reduce call noise and restore fidelity, featuring 10mm speaker unit and fine tuned sound surround algorithm for immersive experience. 3. Easy Control: Simple design with volume control support. Control keys on the legs allow easy access to functions like answering calls, playing music, and more. Supports for Voice Assistant. 4. Multi Scenario Usage: Ideal for driving, cycling, and outdoor activities with 15 to 20m stable transmission. This Bluetooth sound glasses also offer enhanced sunblock. 5. Enhanced Comfort: Soft silicone non slip nose pads of this music glasses reduce pressure on nose bridge, while the curved legs provide a secure fit for all day wear. Specification: Item Type: Smart Bluetooth Glasses Material: PC, ABS, Metal Battery: Lithium Polymer Battery, Battery Capacity: 110mAh x 2 (Shipped with Built in Battery). Package List: 1 x Bluetooth Glasses1 x Storage Bag1 x Charging Cable1 x User Manual1 x Cleaning Cloth