1、ADVANCED TECHNOLOGY: Combining fashion and technology, equipped with bone conduction technology, which ensures clear communication even in noisy environments, making music and calls more private and non intrusive. 2、HIGH PREVENTION: With UV400 prevention level, it effectively blocks UV from damaging your eyes, so you can enjoy the bright sunshine at will. 3、EXTRA LONG WORKING HOURS: Built in 250mAh lithium ion battery, you can get about 8 hours of playback and talk time on a single charge, which meets your needs throughout the day without frequent charging. 4、HIGH SPEED CONNECTION: The glasses support BT4.0 with an acceptance range of 10‑15 meters for fast and stable connection, whether you are listening to music or answering phone calls. 5、SIMPLE OPERATION: Supports touch control, making the operation more simple and convenient. You can use it with just one touch without complicated steps. Item Type: Smart Glasses Material: PC Weight: Approx. 353g / 12.5oz Prevention Grade: UV400 Connection: BT V4.0 Connection Distance: 10-15m / 32.8-49.2ft Microphone: Built In Playback Time: Approx. 8 Hours Talking Time: Approx. 8 Hours Charging Time: Approx. 2 Hours Battery Type: Built In 250mAh Lithium Ion Battery 1 x Smart Glasses 1 x Glasses Cloth 1 x Glasses Boxes 1 x Test Card 2 x Earplug 1 x Earplug Box 1 x Instruction Manual 1 x Power Cord