Features: Fit closely to your face, comfortable, stable and anti-slip Easy to operate, you can change the song with one press. You can activate voice assistant by long pressing the button, super convenient. Open ear hearing design, you can pay attention to the change of nearby circumstances, enjoy music without disturbing others. Multifunctional, novel appearance, Bluetooth-compatible phone call, listen to music, navigation, voice assistant, rain/sweat proof, magnetic cable charging. Specifications: Material: Resin Size: Approx. 145x155x50mm/5.71x6.10x1.97in Battery Capacity: 110mA Wireless Distance: 5-10m Operation Method: Button Press Color: Gradient/Transparent/Black Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Audio Glasses