Description：
Bluetooth chip; blue flood 5616
Bluetooth version; 5.3
Transmission distance; 10 meters
Listening time; about 2-3 hours
Talk time; about 2-3 hours
Standby time; about 90 days
Charging time; 1 hour. DC voltage; 5V
Headphone battery capacity; 45mah
Charging compartment battery; 1200mah
18650 battery
43.5*24*51cm
Weight: 14.7kg
Box: length 110MM width 98MM height 40MM
Headphones length 75MM width 58MM height 34MM
Headphones weigh 103 grams
With box weight 142 grams