Cryfokt Smart Sound Glasses - Bluetooth V5.3 Blue Light Blocking

1. [INTEGRATED SOUND AND ] Upgrade your visual and auditory experience with built-in sound function 2. [BLUE LIGHT BLOCKING] Protect your eyes from harmful blue light and prevent fatigue 3. [ENVIRONMENTAL AWARENESS] Stay safe during outdoor activities while enjoying music and ambient sounds 4. [LONG-LASTING BATTERY] Enjoy up to 4 hours of playtime and 5 hours of call time 5. [USER-FRIENDLY DESIGN] Lightweight TR material for comfort and easy operation Spec: Item Type: Smart Glasses Material: TR Connection: Bluetooth V5.3+EDR Protocol Support: HSP, A2DP, AVRCP Connection Distance: Approx. 10-15M / 32.81-49.21ft Microphone: Built in Playback Time: About 4 hours Talk Time: About 5 hours Charging Time: About 1.5-2 hours Standby Time: About 100 hours Battery Type: Built in 160mAh lithium ion battery How to Use: Connect to Bluetooth after powering on packing list: 1 * Smart Glasses 1 * Glasses Cloth 1 * Glasses Box 1 * User Manual 1 * Power Cord Note: The product is not water proof and is not suitable for use in public places with noise. It is only suitable for adaptation in relatively quiet outdoor environments.