Description:It is enjoyable to have high-fidelity and stereo sound effect because of the noise-reduction microphone of the smart glasses.Supporting eye protection, hands-free calling and listening to music, the smart glasses is multifunctional and practical.Made of resin material, the smart glasses are eco-friendly and lightweight to use.The length of this product is 15.5cm, the width is 14.5cm and the height is 5cm.The smart glasses are suitable for driving, riding, climbing mountains and so on. It has functions of navigation, voice assistant, rain/sweat proof, magnetic line charging, etc.Item Name: Smart GlassesMaterial: ResinBattery Capacity: 110 mAh (Included)Charging Time: within 2 HoursStandby Time: 200 Hours (under Bluetooth-compatible Connection)Using Time: 5-7 Hours Receiving Distance: 30 Feet (9 Meters)Speaker: Dual Speakers, StereoSupport Devices: Support for iOS and for Android SystemsFeatures: Hands-free Call, Voice Assistant, RainproofSize Details: 15.5cm x 14.5cm x 5cm/6.1" x 5.71" x 1.97" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Smart Glasses