Contact distance: 10m (Max)
Bluetooth: 5.0 Version 
IC type: JL6963A
Adaptor Input: 5V 300mA
Adaptor Output: 5V 300mA
Adaptor Battery: 3.7V/240mA
Earbuds Input: 5V 40mA
Earbuds Battery: 30mAh 
Charging time: About 1 hour
Working time: 2-3 hours
Standby time: 60 hours