Feature: 1. Open solution: This solution allows you not only to listening to music, answer calls, but also to hear notifications from glasses, while listening to the world around you; 2. Use Noise Canceling Microphone: This wireless Bluetooth-compatible 5.0 has wide compatibility. So these glasses are perfect for cycling, running, driving, boxing, fishing, playing basketball, shopping and other outdoor activities, you can easily make calls with high-quality sound; 3. High performance: charging time: 2 hours, standby time: 6 hours, play music for about 3-4 hours (depending on the volume and sound source), and talk continuously for about 4-6 hours; 4. IPX7 Waterproof Sunglasses: Our wireless Bluetooth-compatible 5.0 sunglasses are designed with good waterproof effect, which can easily resist sweat and rain. The glasses are perfect for sports, music and calls. Description: Name: Bluetooth-Compatible Glasses; Lens: anti-blue light lens; Lens material: acrylic; Frame material: ABS+PC; Speaker type: AAC dynamic speaker; Microphone: -40dB±3dB; Compatible profiles: A2DP, AVRCP, HSP, HFP; Transmission distance: 33 feet (10 meters); Battery: rechargeable lithium ion, 100mAh+100mAh; Continuous playback: 4-6 hours (normal volume); Standby time: 16 days; Charging time: 2 hours; Waterproof grade: IP7; Bluetooth-compatible version: CSR5.0; Working temperature: -10°C-+50°C Humidity 0-90%; Color: Black, Blue-light; Packing list: 1 x Bluetooth-compatible glasses 1 x USB magnetic cable 1 x instruction manual 1 x packing box Note: 1. Due to manual measurement, please allow 1-3cm error. Make sure you don't mind before bidding. 2. Due to the difference of different monitors, the picture may not reflect the actual color of the product. Thanks.