XG88Pro Smart Stereo Bluetooth Headset Glasses Outdoor Cycling Wireless Calling Glasses Features: 1. Adopt pulse DT3.0, adaptive directional sound transmission; detect the sound position, automatically adjust the propagation angle of the integrated sound beam by 25 degrees, ensure that the sound is accurately projected into your ear canal, and effectively reduce sound leakage 2. HIFI sound quality, cinema-level auditory enjoyment 3. High-quality accessories, precise structural design, full bass, loud treble, effectively restore the original sound quality 4. Adopt intelligent high-performance Bluetooth 5.3, high-fidelity transmission, bring more stable and high-quality connectivity and performance experience 5. Type-C charging, easy to use 6. Smart button, simple operation, one-button trigger 7. Long press the side playpause button for 1.5 seconds to successfully wake up the voice assistant 8. Elastic temples, lightly flicked and flexible without pinching the face, suitable for people of all face shapes Product parameters: 1. Chip: Zhongke Bluexun 2. Bluetooth version: 5.3 3. Communication distance: barrier-free 10 meters 4. Headphone battery capacity: 80 mAh 5. Standby time: 30H 6. Listening time: 5H 7. Talk time: 4 hours 8. Charging time: about 1 hour 9. Waterproof performance: IPX5 10. Product size: 150 x 48 x 45mm, temple length 165mm 11. Net weight: 35g Packing list: -Glasses x 1 -Charging cable x 1 -Instruction manual x 1