Compatible Bluetooth Version: V5.4
Supported Protocols: A2DP, AVRCP, HFP
Transmission Distance: 10 meters
Headphone Battery: 30 mAh
Machine Cell Battery: 200 mAh
Speaker Size: F14.2mm Copper Ring Speaker
Machine Cell Size: 57*54*42mm/2.24x2.13x1.65inch
Color Box Size: 115*92*36mm
Gross Weight: 75g
