Feature:1. Lightweight and portable, it is convenient to carry and use when talking while driving.2. Multifunctional glasses, support self‑matching glasses, can make or answer phone calls by voice.3. The performance is good, the volume is clear, and the call effect is excellent, making it easy for you to hear the other party's speech.4. Scope of application, suitable for driving and office use, freeing your hands.5. Sturdy and durable, made of high‑quality ABS material, not easy to damage and very durable.How to Use:Connect your phone to Bluetooth, you can listen to songs.Specification:Item Type: GlassesMaterial: ABSFunction: call, music,Use Way: ButtonBT:BT5.0Charging Method: USBCharging Time: About 1HBuilt-In Battery Capacity: 90mAhUse Time: About 4H (100% volume) Package List:1 x Glasses1 x Charging Cable1 x Manual 1 x Cleaning Cloth1 x Storage Bag2Pairs x Glasses Temple