• Open-Ear Sound Experience: Built-in speaker and microphone, it allows you to listen to your favorite music and offers high-quality clear sound while on calls after connecting Bluetooth
• Wide Compatibility: Compatible with Bluetooth-enabled devices, including iOS/Android devices
• Key Control: After connecting to the mobile phone Bluetooth, you can press the key button to switch, play or pause music playback, answer or reject calls, and wake up the voice assistant of the smartphone
• Remote Photography: The Bluetooth-compatible remote control function allows you to take photos or short videos more conveniently, you no longer need to hold a mobile phone, capture beautiful moments or record life's moments more freely
• Waterproof & Sweatproof: The glasses can effectively help prevent sweat and drizzle from entering the inside to damage the glasses
• Suitable Scenes: Great for outdoor activities such as cycling, fishing, driving, walking the dog, sunlight baths, etc

Specification:

• Chip: Bluetrum AB5636A
• Bluetooth-compatible version: 5.0
• Wireless connection distance: about 40 feet (more than 12 meters)
• Speaker specifications: AAC speaker 
• Battery capacity: 170mAh
• Charging method: Magnetic charging sleeve 2 pins (left) + 2 pins (right)
• Charging time: about 70 minutes
• Standby time: about 150 hours
• Talk time: about 4.5 hours
• Play music time: about 5 hours
• Control method: Key control
• Frame material: Slab
• Lens material: Nylon+UV400 (UV protection) 
• Template material: PC
• Waterproof level: IP65