GUAZI STORE Smart Outdoor Glasses - Bluetooth V5.0+EDR Polarized Stereo Speakers

Product Name: Smart Outdoor Glasses Item model number: K08 Frequency range: 2402-2480MHZ Bluetooth version: V5.0+EDR Bluetooth protocol: HFP/A2DP/AVRCP Transmission power: Class 2 Music playback: 3-4 hours Transmission distance: 10-15 meters Charging voltage: USB DC5V Talk time: 5 hours Standby time: 200 hours Charging time: 1.5- 2 hours Weight: 0.01 lbs Battery capacity: 3.7V/130mA Q:Why are smart glasses better to use? A:Compared with Bluetooth headphones, there will be no dull "ear plugging feeling" at any time, It is cordially connected to the outside world, and you don't have to worry about losing it from the ear like a wireless headset. Wearing it for a long time will not cause earache or heat like a headset, and it can also protect your eyes when you face the screen for a long time.